I have a 159m Wollensak EWA lens in a non-working shutter. The f/stop lever is very stiff, but movable with effort. I've found another Wollensak shutter that is a direct screw in for the lens - it has no f/stop scale at all.

Before spending money to send the lens and new shutter off to Grimes, I'd like to experiment with it. Could I make an f/stop scale by simply measuring the old shutter's stops with calipers, setting the new shutter's aperture to the same diameter, then making a mark on a temporary paper scale? Would it be that easy?
Thanks,
juan