DRF aka Thrifty Bill
Join Date: Jan 2008
Location: The NC Mountains
Bikes: 86 Katakura Silk, 87 Prologue, 87 Cimarron, 14 frame school custom, 73 Paramount
If you are paying for the repairs, I would just post a WTB wheels on your local Craigs List in the bicycles for sale section. I have bought dozens of sets of used wheels, the most I have paid was $40, and that included decent tires, tubes, skewers and the cassette. For MTB wheels I tend to get them for less, typically half that amount.
If the car driver is funding the repair, I would take it to a bike shop.
Regardless, I would have the frame checked FIRST before I bought anything. It would be pretty unusual to ruin both wheels and not have frame damage.