Hm.. I'd be interested in this as well. However, I have a feeling that it's hard to give a good estimate (maybe a very general estimate) without seeing the car in person.
That seems to be the wholesale rate for PDR as most will charge between $50 and $75 per panel. It also depends on the location of the dings and dents and how easy they are to access, but the price seems to be in the ball park.