[Crachian]

17-20 with the difference in the details. At 80K, you're right on the verge of knowing whether the valve guides are weak. And it's going to need a clutch soon if it's still sporting the original rubber-centered unit. A lot of things will need replacing at that mileage/age, wear items such as plug wires, brake hoses; fuel lines; door seals, just to get it up to snuff for driving because it obviously hasn't been. Other things that make a difference (or would to me): clutch fork upgrade performed? good log books showing fuel mileage and oil consumption; 8" fuchs?; any rare options?; color; full or partial leather; leaks; has it ever had an aftermarket alarm or stereo installed (these are easy hack jobs). These are great cars.

Understanding it's a low-mileage car, here are a few suggestions anyway: look under hood seal and behind quarter glass seals for corrosion. Measure the brake rotors because this is about the mileage for a gently driven car that they'll be gone if not replaced already.