In today's world, how would we get such a nice sight plugged into our cocking pieces? Who would cut the dovetails? I would love to use such a sight, but don't know how to have it installed.
Well, the easiest solution is to buy one already installed on a cocking piece. However, anyone with a milling machine and a reasonable knowledge of machining should be able to cut a dovetail slot. The person doing the work would need the sight as well, to measure the depth needed for the cut and maybe do some hand fitting.
Vintage gunsmithing books from the 30's, like J.V. Howe's book suggest also modifying the bolt shroud to include include a spring
loaded plunger to reduce an element of play.