Welcome, Shannon!
So glad you found us. Sincere condolences for the loss of your Hahn's. As mentioned above, many of us have been there, so we definitely understand.
Also as mentioned, an open mind when considering a new bird brings options you may have never even thought about. I totally understand the idea of a green wing, commonly considered the gentle giants of the macs. If you have the opportunity, allow a bird to choose you. They're demonstrably better at choosing us than we are of them. I have my YNA, not because I was looking for one, but entirely because she determined I had to be her person. She's amazing, and I love her to pieces!
Are you considering a rescue/rehome? I highly recommend it, and except for budgies when I was a kid, every one of mine have been. They're so worth it. I've never had to deal with issues and changes that come about with puberty, and I consider that process kind of above my skill set. I much prefer an established personality of an adult. What you see is what you get kind of thing, as far as behavior. I think it's easier to work with that. While there are birds in rescues or being rehomed because of "issues," many, if not most are in that situation because the owners simply couldn't, or wouldn't care for them properly. I guess I'd also consider the lifespan of a large mac, so really, 10-20 is still a young bird.
Sorry if I come off as pushy for the rescue agenda. It's something I believe in personally. I have no issue with buying/adopting a young or (fully weaned) baby bird, and would never fault anyone for doing so. I get the attraction, it's just not my personal preference.
Stick around, there's lots to be learned here. Feel free to ask questions. We have lots of great folks, happy to help in any way we can.