Everything that's been suggested would be a fine selection. The only thing I have to add is you may wnat to consider something shorter in length like a TC Hawkins. I have a kentucky w/a 33in barrel and sometimes it seems like I beat it on about every tree in the woods trying to get turned for a shot. Most of them come w/a 1/48 twist so you could shoot RB or conicals w/it if you so choose. Plus you could get a GM barrel for it in 1/28 (I think cayugad and sabotloader have one) and they speak very highly of them.

Just something to think about.