wow.. you have unique opportunity here. I would say you need to try and meet him at his house and alert ;your local police to this scam. I tried to set up a meeting and my local police where going to meet me there. They backed out and I never had the chance to meet them, however I did stop them from taking 9000.00 dollars from me. Try and meet up w/ them
and tell them you have the cash and want to see the car. Its the only way you will do the deal.
Remember... there is NO SUCH THING as google.checkout for car sales and escrow accounts.. EVER>> EVEr..
dont even think about using it for the sale. Either meet him in person ( w/ Police ) or no sale.