I have been searching ebay for a while trying to find another Z and I had already seen this guy's ad. The part that got me was that he said that he had been comparing ebay ads and this was less than the normal price of a Z in this condition selling on ebay. Not from what I have been seeing. I would say that the normal price would probably be around 10 on ebay. If you are really looking for someone who can't stay away from the crack rock try this ad http://adcache.collectorcartraderonline.com/10/5/5/80265255.htm
The place that you used to go to down there would have been the Z Doctor's on Edgewater Drive. Oddly enough, I found them on a google search a couple of months ago even though they closed shop a few years ago. I called them up and I guess the wife answered and told me that they closed shop. Maybe worth a call to them. Who knows, he may even still do work on the side. It's a shame the place closed shop it was a Z icon down there.