WTB: silver 240Z

I'm looking to buy a silver 240Z in the near future for a refreshing... interior condition unimportant, but I would prefer a car with as little rust as possible, and it must have a manual tranny. Must be driveable, and as original as possible. I had been thinking about getting another black '78 280Z 5-speed like I had when I was 19 but I can't get this image out of my mind.... I'm not sure what the major body differences are from the 240 to 260 to 280, but I think there are subtle nuances that make the 240 more attractive, but what's really getting to me are the 280's huge bumpers I also can't afford anything anywhere near what these guys are asking!!