I just got a speed graphic, and I have a couple of questions. I don't think the rangefinder works so I'll probably take it off. The FP shutter seems to work fine. First of all I have no lensboard. What kind of lensboards fit this camera, and can I make one? Second, I found backward tilt, rise, and shift, but no swing, fall, or forward tilt. Can I flip the front around to get forward tilt? There is a little lever on the right side below the FP shutter tripper lever. What's it do? The normal shutter's cable seems like it would be too stiff to operate even if I did have a lens. Is it ok to oil it?