A guy rear-ended me/ whats the avg cost of repair?

[kdrshocker]

Yesterday, while going to work, an old man in a POS toyota truck rear-ended me. i was slowing down for the car in front of me and he was only doing about 10 MPH. When i looked at the damaged, there are only a couple of stress marks and a few scrapes on my bumper. I was amazed at how well the car took the hit. His front grill/bumper was left with a 370Z bumper imprint and he cracked his radiator.

I'm just trying to figure out an average cost before the insurance company tries to give me a check for nothing. I knw the bumper will have to be resprayed/fixed, the energy materials replaced, and maybe the interior support. Just wondering if anyone had an idea about cost. I'll post a pic in a min or two.