[tmaull]

Please understand that the purchase price is one thing, but the cost of ownership is another. With this kind of thirty five year old car, you're going to need to budget money to fix problems as they come up. And they will. The PPI can help you estimate how much you're in for, but it's always a gamble. If you have as much fun tinkering as you do driving, then it doesn't matter much. But if you don't want to do a ton of work on it yourself, you're going to end up in someone's shop, sooner or later, writing checks with zeroes on the end of them. As long as that's okay with you, go for it.
-Tom