Not ordered very neatly, but here goes:
-You should be able to find a gen 703 crown from many sources, including Yuki, if he's still got some in stock. You don't want to buy pushers from Yuki, though, as both Ofrei and Cousins sell excellent screwdowns for less. Clark Watch Parts also carries a set for even less, but I don't know anyone who's tried them. They look similar to the more expensive units, but it's hard to tell for sure based on the tiny pictures.
-I'm also particular about the tall markers, but the I find the Yuki's subdials a bit flat and featureless. I would go with ingod44 if I wanted an exotic, and one of DW's older dials if I preferred standard models. His newer batch has good print quality, but weird-looking subdials. Never tried NDT, but it and Phong are also possible sources.
-You should be able to find V23/72 stems from various sellers, but make sure you get a Rolex-compatible Tap 10 (i.e. 0.9mm).
-If you can afford a Phong case set, it's the best way to go for high accuracy and low hassle. However, I find DW's bezels to be superior, even if you do have to sand the inner edge.
Bit of a V72 franken renaissance going on right now!