Ahhh, I went to post a question and find that you are the person whom I should ask. Dontcha just luv Apug!? I have a 110B convert with a problematical Prontor SVS shutter. IF I cannot get the shutter repaired, do you think it would be difficult to substitute or replace the lens/shutter as you suggest. I am not a tool-using member of our species; more of a fiddle fixer. What do you think would be involved?