It is possible my fingertips may never grow back after dealing with all the masking paper though

I did make a couple of changes (as all tinkerers do). As the design evolves and more equipment ends up "on top" getting the wires up there is a challenge. I added a piece of carbon fiber tubing running as a fourth vertical to make is easy and neat to run all of the wiring (see attached images)
Thanks for a great printer.