Ok hears what I ended up with after I cut off the keyways and the multiple steps. She is 36” long 5” at the bottom and 4 ¼ “at the muzzle. Straight 5”, for 18”, 20” from bottom to end of taper then the 4 ¼ starts and ends 16” later. So I need some help deciding what bore size to go fore. I live in Texas so my first choice is cola can bore (bigger is better). A reduced powder chamber of cores maybe 1 ½ X 2”. All so maybe a Texas Republic style carriage if there is a difference.