Great and loving approach to Breeding (large 'B'), but with what little I know about Macaws (I'm an Amazon Snob) if you get young Mac's and raise them in such a way as they are highly likely to bond and than mate, it can be seven years before they start providing eggs and possible another three to five years before then get it right and start providing eggs that will hatch.
I understand the want for a family experience, but that is a lot of time prior to you learning the next steps after you have hatched eggs. Based on that, I would strongly recommend that you start a Nationwide search for a proven bonded pair.
FYI: Your Mac of choice, I believe, is a CITES class #1 or #2 and you will need to provide a Hatch Certificate with the chick whether for your family or the open market place. Easy to create when you are Hatching, an issue if you wait until someone is banding on your door need one...
We have several excellent Breeders on Parrot Forum, please see the Breeder Forum for more information.
Enjoy.
Just cause it's the way I'm wired; why all the numbers???? repeating 65's