Involving the screw that holds the spring for the stop-down lever, perchance?
There is the guy in Montreal, QC who's selling the Nikkormat FTn kit for $75 here on APUG. Maybe grab that, since it has the lens you damaged.
Anyway, just killed off one of the parts bodies completely. Decided to test the shutter. Fired fine at 1 second. So, tried moving the shutter speed ring to 1/1000. Very hard to do, but got it done. Tried firing the camera again. Nothing. Shutter then began firing as it was cocked without actually opening. So, figured, well, let's take it out screwdriver through the shutter style... :-)