I understand and appreciate what you are doing. So many animals out there end up in crappy homes, so it's nice to see other people out there helping them (I just rescued a 5+ foot girl last weekend). I wasn't trying to come down on you in any way...I was just stressing some concerns (of which you answered). One other thing to note is that BP's are mostly a solitare animal in the wild and housing them together is not always a great idea (although some on here have done it successfully). I guess that's a call on the keepers part.
Unfortunately I have no hands on advice to offer on the breeding questions, but I do wish you the best of luck!