Well, I went to check out the car with 80k miles on it and the mileage seems to check out. The motor ran very well. In fact, I don't think that I've ever driven one that would go like it did. I guess that's how they ran when new! Anyway, the "only" problem is that the car has been sitting outdoors for a while so as expected, the paint is pretty oxidized, there are are a bunch of rust spots, and the dash is totally cracked. Two of the rust spots go through the metal - one on the hood, and one on the left front fender. The seller was unwilling to go lower, so I think I'll pass on it because it would cost a lot to get it back into a condition which I could live with.

Going to check out the other car over the weekend. Fingers crossed.