I once had a parts car I was selling. I had a guy from out of state call about it. We made a deal for it, and he paid me the money. Well it turned out that every time he wanted to come get the thing, something on his end would come up and he couldn't get it done. We kept in touch for a number months, and then all of a sudden he stopped returning phone calls and e-mails. Finally, after not hearing from him for almost 9 months, I re-listed the car on the same web-sites that I had used before. I had hoped that he would have seen it, and said "Hey, I'll be out to get it strait away." Well that never happened, and I sold the car a SECOND time. I never heard from the guy again, so I don't feel bad about taking his money. There's only so much you can do, and then you just have to say "f**k it". If you don't get in touch with the guy in the next 5 months, sell the thing and move along with your life.