Henry Lever Action or Bolt Action?
Henry Lever Action or Bolt Action, Your preferences for the calibers of .375 UP.
What opinions and suggestions or it is a question of preference.

Neither!
Winchester 1866 Yellowboy adorned with brass thumb tacks ... could have been what Crazy Horse carried in 1876.
Geronimo had a silver washed one which was surrendered for the last time in 1886, IIRC.
Make it a 44/40 or 45LC.

Now seriously ... What purpose do you have in mind?
Do you mean the same Henry lever action in 44 Rimfire that Civil War troops loaded on Sunday and shot all week?

DRG says: "Kiss my liberal grits!"