Looking for a new ,"used" engine. Wondering if it is worth repairing? I located this unit for a friend. He talked to the owner and ok'ed the purchase. Bought it home it started once and he drove it around the vineyard for a few minutes, shut it off, and it has not run since, Took it to the dealer and after $2100 in trying to locate the problem, we were told the engine needed to be replaced. We are in this over $7400 and have nothing to show for it except headaches. Need some advice. I can do a lot of mechanical work, if we can find parts to fix it. The engine will have to be overhauled. I have seen some rebuild kits for around $300, but don't know much about the quality. Any advise appreciated. Thanks. Bill