Ebay 69 Corvette Motion?

[69LM1]

If you are really intent on getting the car, you can find whatever type of "Small Claims" equiv that they have where he lives. Usually, for a small fee, you can file a lawsuit (Here, it is $85 for a 3500 max claim, or $350 for a 10,000 claim). The best part is that you do not need a lawyer, although you can use one if you wish. Here in Louisiana, a Judge hears the claim, in a regular non lawyer discussion, he (the "judge") then does some legal research and renders a legal decision.
Sometimes just the threat or even getting "served" is enough to make a person "make it right".

Caution though, you can be "counter sued" so make sure that your nose is clean!

Hope it works out for you,

Rich