I've a replica French M.1763 pumpkin slinger, a prop from "Last of the Mohicans" which was filmed hereabouts. I've had it converted cone-in-barrel to percussion. Who might restrike the markings to conform to an M.1795 Springfield or Harper's Ferry? I understand doing such to a hardened lockplate is an especial chore and, of course, the craftsman has to have proper dies. Any help would be appreciated.