By all means do it if you want.
Bobby Hoyt is the man you want to talk to.
Many “rifles” of the period were not rifled at all, and were smoothbored yet featured rifle architecture and rifle sights. A 28 gauge (.54 caliber) will provide great versatility with round ball and will be useful for small game with shot. If you’re planning to do lots of wing shooting a bit larger bore may be better but some do it with 28 gauges.