very agressive RTB

I have a 6.5 foot Central American boa that has a pretty nasty temper as well. It was given to me by a mother who's son moved out of state 10 months prior, and no one had interacted with the snake since. I have had some "altercations" with the snake, but I can also handle it as long as certain conditions are present, such as, the snake is not in its hide (or anywhere else) all curled up and cozy, and the snake is not hungry.

Now, I am not by any means the most experienced boa keeper here, but I have read that boas do not need to be fed anything larger than a baby rabbit or guinea pig. Unless you want to end up with a 14-foot monster, I would stick to smaller meals.

Reference: http://www.boa-constrictors.com/com/sizeofboas.html

ive a few mates that have rescued various large constrictors over the years , most of em were similar cases to what rose went through. it took them a few years to get them used to handling but they got there in the end , they all used snake hooks and started lifting them up for a few minutes at first while extending the handling time a few minutes when they calmed down abit , rich one of the guys who did this was bitten a few times (not feeding bites ) but when he got nailed he didnt flinch he just calmly carried on handling the boa for a minute of so after he was bitten then put him back into his enclosure this method seemed to do the trick :)

I would definitely invest in a long snake hook and very heavy, gauntlet length gloves. Also due to her size and aggressive attitude I wouldn't suggest you handle her alone if at all possible. I can only tell you that with our 4 foot BP, Brannagh, it just took time, a lot of routines and gentle but very firm management of her. She calmed down eventually but we were just as ready to accept that she might not and all we could offer her was a loving, secure home even if she never really accepted us.

I hope Rose will come along for you. At this point just remember as much as you are focused on her needs, protect yourself from her reactions as a big boa bite isn't nice to deal with.