Two games in town for new weapons:
Sharps, as mentioned, and Pedersoli, Italian maker of moslty cowboy type stuff.
After research, I learned Sharps are superb, expensive, and there is a several year waiting list, although with the internet, you can often find someone selling a place in line.
Pedersoli, which I have handled but never shot, $1200.00 out the door, better if you can wheel and deal.
My verdict, Pedersoli Quigley model would suit me fine.
That's as far as I got.
Good luck.