That's the only option I can think of..... unless you want to heat it.... and that's an option I'm not too crazy about.View attachment 1121644 Looks to tight on space to hit with any kind of hammer and it’s too thick to pull with pliers or vice grips but if you can find someone to borrow a big slide hammer from I think you can reach in through that access hole and hook over it and bring it back fairly easily
How in the world did you accomplish that feat? That is a stout piece of metal, it’s not going to bend back easily. Slide hammer will just pop off and beat things up.
Did it bend the same piece on the other side also? They have them on both ends of the bolt.