I can see what you mean, my shoulder just barely wedges in. I would like to add that though I am a renegade fan it takes a whole lot more working with patch, powder and ball to get a super accurate load in one with that 1-48 compromise twist and shallow rifling. To get them to shoot under an inch they aren't easy to load anymore with a tight ball and patch.
It's harder to find green mountain barrels these days in a slow twist. You can make one for about $250 (not including dove tail jigs) or have one made off a barrel blank for about $350 or send a 50 cal to Bobby Hoyt and have him rebore it to 54, 58 or 62 with a slow twist for $100. Personally I wouldn't worry about resale though. They are fine rifles. Right now you don't like it so it has no value besides how much it's worth. If you do like it then that might change and you may not want to get rid of it.