My experiencing is from parting a car out, but I found ebay or craigslist buyers to be a pain. Working the enthusiast forums was a far better experience and less frustrating. Buyers tend to be pretty knowledgeable and once you get some business going, you might start getting requests, etc. So I'd check your local yards, and see what you can work with: Fords, miatas, hondas, whatever, and then post some items to the classified sections on those forums.
