I don't know about you, but the cheesy cross slide dial on my Clausing/Atlas lathe was inadequate. Now it reads diameter instead of depth, and is 3" in diameter instead of an inch. Stainless is nice too.
How about splines? This was for the input shaft on my rock crusher. An automotive clutch was used, and a spline was necessary.
Making parts for the lathe, and using the lathe to make parts for the shaper....
Stamping the numbers so that they look professional is near impossible; I did a dial like that and engraved the numbers with my Gorton 3-U engraver, using a forming guide to engrave the numbers on the curvature of the dial; the roll attachment can also be used to achieve the desired result. The engraver can also be used to engrave the graduations, a stepped stop being used to limit the travel of the style to make the 3 different length lines usually seen on dials.