Only my two cents, but you should throw a big b**** to your insurance company. They will say some low figure, and hope you just accept it. If you come in with some estimates, showing how there is no way you can get it repaired for what they are giving you, they might give you some more.
A threat to sue is always helpful too, but keep this in your back pocket.
The figure is ALWAYS "negotiable". If you have any questions, let me know.
Insurance companies will bend you over if you let them - I would like to emphasize "let" them. Don't get screwed because you don't know your rights.