#1 Wire Duct (REMIX)
#2 WAGO Mount With Labels (REMIX)
These are posted on Printables and TeamFDM.
#3 Low Profile Cable Routes
This is still a work in progress but it's coming along. The wire guides will mount with VHB tape, and unfortunately will block me from adding a cable duct wherever I locate these, but I plan to just keep them in one area. I used a star washer to dig into the metal on the DIN rails with a washer over that and finally the crimped on ring terminal, I plan to ground the frame similarly. Getting the ground screws installed in the DIN rail was a whole 'nother story, which I may write up in the build log, but the short of it is, roll in M4 nuts would be much better suited to hold the DIN rails than the cheap M4 T-nuts included in the FYSETC kit. I used are some 16AWG wire to ground the rails, which will run back to a grounding point.
Once I get these wire guides finalized, I will post them on Printables. There will be multiple sizes of straight or 90° guides, but only two basic formats (single and double wires guides). There is also a double wire "bridge", which will go over one end of the DIN rail and keep the wires off the sharp edges of it as they cross over. The wires I plan to run over the DIN rail are ground wires, so I don't think it would be an issue.