Thanks a lot guys! I contacted the guy who has the cabby for sale and he apparently made it a "permanent convertible": shaved down the lip for the top, removed the windows and regulators. So it's not looking quite as desirable as before. Is it prohibitively expensive to undo what he's done to the car? It currently runs, is rust-free, and has new seats and nice wheels and new tires, so there's still some merit to the car, and it's super cheap (sub 500). I'd have to buy a top as well, since the one he took off was trashed. :?