Probably junk. Unless you find a jib someone took off a rt, the jib new would be 40,000+ from grove. A company I used to work for bought a new jib for a 80 ton rt, after it fell off the crane when they were installing it, and it was over $80,000.
If the main boom is damaged at all, its not cost effective to repair it, plus all the other repairs. A used one like it , depending on years and hours- $150,000-300,000, so if you have to spend $150,000 fixing it, you could have just as well gone and bought one and gone to work. Doesn't look hit hard enough to have damaged the turntable bearing, most likely there is main boom damage where the jib stow brackets jammed into the side of the main boom.
The cab and panel stuff isn't expensive to fix, it would be the boom, jib, and if there is any engine damage, running and laid on its side. Likely the suspension mounts would be tweaked also.
Everything that is wrong with it is probably fixable, its just whether you can afford to fix it, compared with buying a running one. I'm sure its just a listing for the insurance company to try to recoup some costs.