If the rest of the car is tip top, you got it for a pretty good price. Do you have it home yet? It would sweeten the deal more if it has a newer head installed already. Do post some photos, include the engine bay. We have some really sharp people here, they can tell a lot about a car like this from photos.

Congrats on landing a deal you're happy with on a good car!

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1987 300TD named Klause
1987 300TD named Spouse
1987 300D named Seabiscuit
1980 300TD names Chloie (now sadly gone)