Not to get off the subject Jim, but yours is the 3rd gun I have seen that has the wood problem on both sides of the trigger housing. I have a LongRange Wildfowl that has the same wood problems, not soft, looks like it was burned, but not. Not oil either.
Getting back to your problem. If you have a drill press then drilling the hole for the c clamp shouldn't be hard. My table happens to move left-right, and tilt. I just clamped the c clamp on the edge of the table and moved the table to the right and lined up the center punch mark on the top jaw and aligned the drill bit to it and drilled it out. I just did one a half hour ago on a new c clamp that I bought that has a button to quickly adjust the jaw. I used a 3/32" piece of drill rod and drilled a #43 drill (.089)and pressed the drill rod into the hole. The pin does nt have to be centered perfectly on the jaw becasue it is not coming in contact with the other moveable jaw.
I wish I had one apart to show you, but some of the pictures of the clamp and other pictures are on the L.C. Smith site that I submitted. The one with the big hole for the alignment is not mine, I only drill a 3/16" hole in mine.
If you cannot make the clamp, email me with your address and I will make one for you for future guns. Don't let this small obstacle stop you.

