Hi Sara
I too rehomed a pair of ex breeding Bengals (male/ female) about 18 months ago. They were only 2yrs/18 months at that point. They were incredibly agitated, anxious and rarely stayed still when they first arrived (except when they were hiding behind the computer!) There was a moment when we though "what have we taken on!" We were experienced cat owners but had never experienced such (apparently) traumatised cats before
18 months on , they are now so chilled that they will lie in the middle of the living room whilst my grandchildren play around them!
What we did was take lots of time and took things at their pace. We talked to them and did often work in their "safe room" when we we were able to work at home. When they let us touch them we were quick to do so as you can imagine but also were mindful to watch them to read their body language to know when to stop!
The best advice I can give is patience, gentleness and get to know your kitty so that you can learn what she likes and doesn't like. Malcolm we have discovered LOVES to play and so we do, daily! Dany is less interested (we thought) but a month ago, after watching Malc play for over a year suddenly joined in which was the most wonderful thing to see.
I have never regretted offering them a home.. it has cost us money as we ended up building them an enclosure so that they can go outside and the tops of our lovely wooden doors now have marks where they love to jump up and balance/walk along them, but they are such wonderful cats to share a home with and to see the positive change in them has been been a lovely experience. I've never had cats like them before and am totally besotted
Hope all goes well with your kitty