I am very much on board with this line of thinking. Because things are still somewhat in flux, it was much easier to plan for excess cabling and have a place for that cabling to live in the rack so that things can be moved if needed. I'll probably re-cable it with cut-to-length cables in the future.

One thing that I haven't found a solution for though: I have a lot of USB and HDMI cable coiled up behind the Beelink boxes (for KVM connectivity). I've found the normal length cables (1', 3', 6', etc), but I haven't been able to find custom length cables for those specific connections. Do you happen to know anywhere I can find those?