I can point you to the correct chap to re-cut your flat top checkering. You may be surprised what a cleaning will do for it. Raw linseed oil can do wonders. Beyond a bore light or scope the breech plugs need to be removed to get a good view of the bore condition. Blackpowder is water soluble so the best way to clean the bores ends up being a good scrubbing with soap and water followed by oiling the bores. I would not attempt to re-brown your barrels yourself without lots of practice on scrap tubes. It takes a fair bit of trail and error to get the browning process down correctly. Drop me a note for more info on both the stock refresh and the barrel browning. I just cleaned up a nearly black stock full of oxidized oil and dirt with pretty much zero abrasive paper. The gun now has a nice old rich glow to it and wood looks great. Most likely the best route for your gun as trying to make it look new would look "off". Best regards,
Steve
