That is wise, it would be ideal to have the nest boxes in a separate enclosed area, like a second small aviary attached to the first to prevent just such escapes. However me wishing it were constructed differently doesn't do you any good right now, does it?
So back to how to find homes for the new babies. It looks like it is not likely that the babies are going to be properly socialized due to time limits, physical limitations, the construction of the aviary, etc. this is very sad, because parrots sold who are not tame usually lead horrible lives. I am going to be very blunt here, but I do not want to sound rude, so please understand that I am in no way trying to be malicious or disrespectful, but it sounds like this is not the right hobby for you. There are many things that have stood out to me during our conversation, but the breaking point is that the babies need to be tame in order to have the best shot in life. You seem to be a good person who cares about his birds, so I don't think you would want to continue producing birds that could not find a good life.
Trust me, I know how enchanting it is to watch the whole process, but as a breeder I beseech you, do not add unwanted parrots to. The system. There is so very much that goes into being a responsible, ethical breeder, and while I believe your heart is in the right place, the truth of your actions shows that at this time, you are not doing what it takes. If you are truly desirous of continuing to breed, I would be more than willing to come along side you and help you figure it out, but it would be time consuming, very expensive, and very difficult, especially considering the physical challenges you face.
But don't think I want you to give up birds! IRNs are EXTREMELY smart and trainable, and can learn to talk and do all sorts of tricks. I suggest that perhaps taking one or two tame birds (maybe more nice you are on a roll) and making your hobby to train them to do clever tricks and behaviors, rather than breeding them, might be the way to go. Training birds is loads of fun, challenging, extremely rewarding, and builds a much closer bond with the animals than breeding does.
