Do you have one serviceable one?
Note: I can't tell much from the drawing so I'm kinda just guessing here. Is the firing pin the sort of thing that you could take to a machinist/gun smith and have made? Might be a bit easier. If you order an off sized pair, you may still need a machinist/gun smith anyway.
I would also recommend asking one of the moderators move this to the Gunsmithing forum, better target audience.
MSgt, USAF, Retired
NRA Life Member
Liberals are constantly telling us about the poor and oppressed in this country. With that in mind, why do they feel the need to keep importing poor people from other countries?