Now that the S90 is done, it's time to move on to the 66 X6 Hustler that came in the S90 deal. It's a very early 66, (serial number 929) that is complete down to the tool kit and tire pump with original paint but hasn't run in probably 30 yrs. Shows 7300 miles. Going to have to go through motor. Pistons, rings and gaskets are not hard to find, but cannot find crank seals. Assuming they are probably rotten. No luck with ebay or Paul Miller (who is to be a good source). Does anyone know of a source or substitute before I spread it all over the bench?