Well, anything I have to say is from books and reading other posts (still waiting on my grey), so take it with a grain of salt.
Uneven wings can cause unbalanced flight, I'd get an even clip to avoid tumbles.
Yes, a spray bottle works fine, I also read that you can buy pure aloe vera gel, and I agree with that completely, I've had aloe vera plants since I was 17. I'd slowly move up to having him shower with you.
not so sure about behavior, but you should move slowly, coercion causes biting and distrust.