Love those front stuffers. Had some real nice percussion guns (by far the best a jonathon browning mountain rifle in 54, stupidly sold it as I didn't hunt with it, it was just too nice to risk scratching and wanted a flintlock)
Bought a, "relatively" cheap flinter and it was.......cheap. Trust me, don't waste your money on a cheap one. Had a few problems; mostly what appeared to be a soft frizzen. Lock worked fine, just hangfire, hangfire, hangfire.
Ever come across a good 54 in my price range it'll have found a new home.
Personally wouldn't touch a 50 for hunting, 54 has some punch at the receiving end. Also found a gun capable 80gr ffg load is deer good for maybe 60 yds max, 130 solid 100, target shooting at around 180.