I didn't use my FP shutter in my speedgraphic for years, but now I have an Aero Ektar barrel lens and it gets a lot of use.

If you plan on using the rangefinder with anything but the lens that came with the camera, look for a side rangefinder setup. The kalart side rangefinders are easy to adjust, the top mounted range finders use cams which may or may not match the lens you want to use.