Hi Tommy...I'm so sorry for your loss; I grew-up with a CAG as a brother, he's now 32 and lives with my mom and stepfather, and I totally understand what you're going through...
I'm hoping I can give you a different view of "Rescue" parrots, as I have been the Medial Liaison at a large, private Avian/Reptile Rescue for over 8 years now, and I can reassure you that the majority of parrots that are surrendered at Avian Rescues are not surrendered because they "have bad behaviors" or have any unwanted behaviors that their owners don't like or can't handle; in-fact the number of parrots that are surrendered because they have bad behaviors like biting, screaming, etc., or that are surrendered because they have been abused or neglected in any way by prior owners, etc. is a very small fraction of the parrots you'll find in Avian Rescues, Especially the larger species of parrots such a Congo African Grays, Cockatoos, and Macaws...In fact I have no problem at all with saying that somewhere around 90% or more of the large species parrots that you'll find in Avian Rescues are surrendered simply because the people who buy them as just-weaned babies had absolutely no idea how much time and attention these species of parrots need every single day, or they are people who bought these birds from their original owners who surrendered them for that reason, and then these second-owners end-up surrendering them to the Rescues for exactly the same reason! And in-addition to not having a clue about how much work, time, and attention these large species of parrots need every single day, they also often find out that they don't have the money to properly care for these birds, usually when they become sick and need Avian Veterinary care...I cannot tell you how many parrots are surrendered to Rescues WHEN/WHILE THEY ARE SICK OR INJURED AND IN-NEED OF EXPENSIVE VETERINARY CARE OR SURGERY! And the other major reason that the large parrots are often surrendered to Avian Rescues if because their owners owned and lived in their own houses when they originally bought them, and for one reason or another they've been forced to sell their houses (or they've lost their houses to foreclosure, that's a very common occurrence unfortunately), and they've been forced to move-into apartments that either don't allow any pets at all, or at least not large parrots...It's very rare that people surrender their parrots to an Avian Rescue because they have "bad behaviors" like aggression/biting, screaming, being destructive, etc...In-general, the people who have birds like that ARE THE REASON that their birds are like that in the first-place, and these types of people unfortunately don't ever really bond-closely with their birds, and as a result these people ONLY CARE about "getting their money back that they put-into the bird", so these people usually SELL their birds on places like Craigslist, Kijiji, Hoobly, etc., and they typically ask the amount that a newly-weaned baby would cost, but they come with a cage and supplies...Again, that should make sense to you, because most parrots that have "bad behaviors", are aggressive, that bite and attack, that are destructive and just uncontrollable in-general get that way because the people who buy them/own them have more money than they do knowledge or ability to properly raise and care for a parrot...And these types of people certainly will not EVER just surrender their expensive parrots over to an Avian Rescue, where they usually have to give a donation in-order for the Avian Rescue to take them in...They want to recoup the money they've "put into the bird", like they're a used car or something, it's sad...
So in addition to the fact that you're going to be hard-pressed to find a baby or juvenile Congo African Gray anywhere for little to no cost, such as at an Avian Rescue, in a pet shop or bird shop, from a private breeder, or just from someone who is wanting to "re-home" their CAG on Craigslist etc., the fact is that most Congo African Grays that you'll find in Avian Rescues are in-fact wonderful birds that are only looking for exactly the same thing that you're looking-for right now: They simply want to find a forever-home,
a family, a "flock" who will love them, take care of them, and be there for them, and who they can give love to right back...And most of the large parrots you'll find in Avian Rescues are not very "old" at all, especially in-relation to how long they live...I'd say the average age of the CAG's, Cockatoos, Macaws, etc. that we take-in come in two different age-groups: They are typically either between 5-10 years old, or they are between 15-20 years old...Not "old" at all, in-fact most of them are considered juveniles to young-adults...Not that this should matter to you at all, because the ability to bond-closely with a parrot has absolutely NOTHING to do with their age, but rather just how they feel about you, and you about them...Hell, you're 60 years-old, right? That isn't at all "old" in any way, but you're also not a guy in his 20's or 30's just starting-out either, not a young family just starting-out looking to "start" your family...You're a 60 year-old man who is desperately looking for a parrot to share your life with and to be your best-friend in the world...That's exactly the same thing that the parrots in the Rescues are looking for...
And just another important thing to note, I wish that every single person who came into the Rescue to adopt a parrot and bring them into their family was exactly like you: you're experienced with large parrots, you not only know how much time and attention they need but you WANT to give all of your time and attention to whatever bird you bring into your life and your family, and the only reason you are wanting to find a bird is to love them and bond with them, and to have a life-long relationship with them...You're the type of person who all of the parrots that are in the Rescues need and want to find...
I understand wanting to bring home a little baby CAG who is under a year-old and who you can watch "grow-up", but forgetting the financial problems with buying a baby CAG right now, it just seems like such a waste for someone like you to just automatically pass on a CAG in an Avian Rescue without you even going to a few Rescues and meeting some birds...For all you know the perfect parrot for you is sitting in an Avian Rescue somewhere in or near Indy right now, waiting for you to bring it home...What harm is there in at least going to all of the Avian Rescues in your area and making sure that the perfect bird for you isn't sitting there waiting for you to find it? And just as a side-note, the "adoption fees" at most Avian Rescues for the larger parrots are at-most a couple hundred dollars, if that. A lot of Avian Rescues are more concerned in finding an experienced, capable, responsible home for the birds than they are about adoption fees...either way, it won't cost anywhere near what a hand-raised, baby CAG costs...
If I were you I'd at least take a trip to the Avian Rescues in your area and check out the birds-in-need that are there, waiting for "their person" to find them...And if you don't find the right bird for you then that's fine, but at least you'll have looked and made certain of that...Like I said, for all you know the perfect bird for you is sitting a few miles away from you right now...