With my limited knowledge of body shop technicalities as it has to do with frame/body straightening, my opinion is...
- if the frame is bent/tweaked and they can return it to spec, that will not address the body's issues.
- if the frame is fine, maybe just a tweaked body mount, $10k is still not enough to fix its problems. Too many hits to determine which impacts did what...things a body/frame guy needs to know to properly fix/adjust. That thing is fucked even if they can get it to "look" straight...wheel track, alignment, door/gate leaks, hinge binding, etc.
It wasn't built for this level of hammering. You were pinballed inside that thing and luckily escaped serious injury. It was pinballed all the way down to its abrupt stop. It ain't just cosmetic, it's crippled.
If it were mine, I'd dump it...emotionally painful as it may be.