Hi,
I think the price varys from what part of the country your in, Our shop is in the process of restoring a 70 440 6 pack challenger and we are doing that for 7,000.00 thats complet dissasmbly, putting it on a rotissarie, blasting it rust repair complete paint(engine bay,trunk,under,everything). This car is in good shape some rust on the lower rear quarters and some pin holes around the car. Things that willnt be done are the interior,chroming,and small parts resoration. Our shop has done several ebodys and a lot of chevrolets. We are now working one a 70 challenger convertible, 70 v code challenger, 65 shelby gt 350, and a 71 chevelle........ I think 10,000 isnt a bad price if he is doing the hole under side and outside incluiding the engine bay. But only if he is make all metal repairs with metal not just mudding them in.
good luck,
jay