I have a nice newer (2016 production) custom shop Frontier Six shooter. Black powder frame, etched panel, bullseye ejector, beveled cylinders. The hammer has modern style checking and I'd really like the checkering to be period correct. I have a few nice early 1st gen hammers that recently had their notches re-cut and cams replaced. How hard would it be to fit this this hammer in my 3rd gen? I know the early firing pins won't fit through the hole in the recoil plate - can the early firing pin be replaced with a 3rd gen pin? I'm guessing the work involved to get this to fit wouldn't be worth the cost. The other option would be to re-checker the modern hammer but that seems to cost an arm and a leg. This isn't something I want to invest a whole lot of money in, it's just a nice to have.