Rare hare brown, Like they say if your gun has a drum and nipple it can be easy. I am not real familar with the brand of gun you have. Sounds as if it is american made. touchole liner come in 1/4x28, 5/16x24, and I think white lightning make a 3/8 liner. It may be as simple as pulling your drum and screwing in a liner. am also not familar with your lock, It seems you have 2 options, rebuilding that flinter lockplate. option get a Siler gunsmithes lock completley assembled internals but lock plate is rectangular, you just file and fit to your mortise. you need to send more specific info, we must know whether gun is a drum and nipple system, or a bolster system in order to precede. I have 8 rifles and pistols I have converted for my personal use, and over 40 years experience as a gunsmith. And if that aint enough my last name is Brown also (arkansas). shucks we may even be kin! let us know your thoughts with specific info before we procede. Yes it can be done yours hounddog