So here is where I am right now.
Shiloh 1874 (1991 vintage).
Green Mountain 1 in 17 twist, #1 profile, 30" long. (I don't know how much that barrel weighs, but I trying to find out.)
The standard Shiloh .44-77 grease groove chamber.
It will have Distant Thunder sights front & rear (What else would they be?).

Straight grip stock with military buttplate, very plain walnut stock and forearm. This is the wood the rifle came with originally. I would like to replace this down the road and I have some very nice wood to work with, but we'll see.
I see two bullets being used, 1) an original Sharps style round nose 2-diameter PPB in the 475 to 480 grain range and 2) an elliptical nose Seitz design 2-diameter PPB in the 500+ grain range. The 17-twist will handle bullets up to 1.500" long.
I do have a couple grease groove molds that Brooks cut for me years ago, but those would only be used for fireforming cases or something like that. The purpose of this project for me is to have and shoot an 1874 Sharps chambered in the sexiest cartridge of all time, the .44-77 *.
* When loaded with PPB of course!!