Electromechanical Relay Nixie tube clock 1950’s cold war replica part 2

This is my very first project from scratch so I hope all will go well. Hardest part was definitely find out how to start. I didn’t have a slightest clue how to start, just a few months ago.
This clock is basically tribute / inspired by HP model 571B mechanical clock and late 50, early 60 HP frequency meters, generators and other gear