Just picked up an old Bondini "W Parker" flintlock rifled pistol that needs some work. Somebody tried to remove the breechplug without removing the vent lined so I have a tang broken off the plug. Flintlock hammer is broken and a bit of wood is missing from the stock in front of the lock. I want to convert it to percussion to be legal for competition but haven't decided the best appproach. My preference would be to find a replacement lock rather than convert the original flintlock. Any suggestions on teh breechplug issue and lock dilemma?