One of my favorite places for shopping these days is Racing Junk! (racingjunk.com) It's a free site, lots of listing and easy to navigate. There is usually an abundance of project cars, complete cars, and "rollers" for sale of most any brand and vintage you would hope for!!! Lots of drag racers and street machine junkies moving up or just changing cars and are usually willing to sell what they have and take a loss!
As with any site, there are some idiots and scammers on there, I wouldn't recommend buying anything without a road trip to do the see-feel-touch deal! It's usually a whole bunch cheaper to pick up somebody's leftovers or half done project then it is to start from scratch!!!! Good luck with your search!