I'm looking for a clean working Graflex RB 3 1/4 x 4 1/4 SLR camera. I'm looking for models like Super D, Series D, or even the older Auto/Tele that has interchangeable lens boards and enough bellows draw. The focal plane shutter should be in good shape and the speeds are good. Cosmetics and lenses (unless Super D) are not so important. I would like to keep my budget well under $500, and my location is SF Bay area.