I need to track down someone who owes me a considerable amount of money.

He is a mechanic that was in the process of rebuilding the engine in my Porsche 930 Turbo. He left Alaska with the camshafts for my Porsche, with the intent of having them re-ground once he established his new residence, possibly in Washington state. He also left before delivering to me about $4500 worth of parts that I had already advanced the money for purchase. (He ran a small but very high quality shop here in Fairbanks, and was a personal friend of more than 20 years standing).

At this point, the only information I have on him is his name (first, last, and middle initial), his previous address, previous phone number, and first and last name of his wife, plus the supposition that he moved to Washington state, but may no longer be there.

What services have people had good results from in a case like this?

tanstaafl.