Another gent mentioned that the drawbolt hole may be #14 X 24, as well Mike. But I had happily already made a 1/4" X 24 bolt and it worked perfectly in the hole, not being too tight at all. Ignorance is bliss.

I'll be glad to take some pics of the pieces for you, 1574trap. Might be a few days before I get them but I will. I didn't go to the trouble to shape them to perfectly match the hammer. I just got the angle close and left a sharp end to engage the sear notch.

May God bless America and those who defend her.