I would pay accordingly assuming that the engine needs a rebuild. But the rings could be sticking especially if it has been run on grease. Putting in good oil and running diesel in it might bring them back. Those numbers being so different will mean it will run a little rougher than normal but after you get it warm it should run just fine really.

But discount the price on the assumption you need to rebuild the motor and assume the worst.

Tom W

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.