I received a pretty Nikon 65mm sw (for use w/rollfilm back) today that was in great condition, except for a pretty beatup Wista lensboard, took it off the board it came with to put it in a new chinese recessed board and despite having done this many times I managed to muck it up, apply too much force, and stripped(wrong word?) the threads on the copal shutter as well as the retaining ring. Is there any easy (cheap) way to fix this? Maybe take it to a local machinist/lathe? I can't be the first one to make this stupid mistake. Sorry if this is a common question, tried to search but only got results of people trying to fix old wooden cameras with stripped screws... learned the neat toothpick fix for that scenario but nothing in this one.