I'm new myself, to birds AND to the Forum, but I read this and decided I would try to find some adoption/rescues places you might be able to talk to (I can't say anything about pionus vs hahns though, I have had neither)
Links:
http://www.parrot-rescue.org.uk/]
http://parrotrescueuk.com/
http://www.safehavenparrotrefuge.co.uk/
Good luck!
