Sandy,
I've purchased 2 on Ebay. The 84 was a great buy, the 71 surely wasn't. You have to see the car in person before your final bid, that's really the only way you'll know what you'll be getting. The 84 is a CA car, and I was there on business, so I was able to see it before purchase. It was actually better than in the Ebay ad with 7s and 8s that weren't in the ad.
It is a very high mileage car, but was very well taken care of it's entire life by one PO. Bought it at 183,000, it now has 229,000, motor has never been apart, and instructors at DE are impressed with its power (has a SteveW chip). It does burn a quart every 500 to 600, but runs strong and so far, I've only done upgrades (suspension and Alcantera/vinyl interior combo with fixedback buckets) and preventive maintenance.
here is a pic... from last fall.
