A very helpful addition to these instructions would be to include what box then bag each part is in on the step itself. Otherwise, awesome instructions!
If you purchased the Printer kit with an Enclosure, skip the installation of the power supply, display and, of course, the relevant cables during the construction of the printer. You then simply connect all of this before finally installing it in the Enclosure. It also worked for me to fix the position of all cables (except for the extruder and the heated pad) after complete assembly, and this also applies to the kit itself without the Enclosure.
Prusa is supplying some of the worst screw quality I have ever seen. I have ruined so many parts while using their "screw pulling technique" to gently sink the nut into the part. As soon as the nut seats into position, the screw seizes and you are unable to remove the screw without the nut spinning in the socket. There is no way to remove it and the part is ruined. I tried multiple screws, multiple nuts, and this happened like 6 times during this build. Some of the hardware is nice, like the Misumi style t-nuts that are spring loaded. But the majority of the screws and nuts are total junk, especially the square nuts. Do yourself a favor and purchase quality hardware before attempting the build and throw out anything that looks like junk. I never had this problem with any of my other Prusa printers.
That's wierd, I didn't have one issue with the screw's about three weeks ago while putting my MK4 together. I just ordered my second kit yesterday and will be ordering a 3rd on Monday. I hope the hardware wasn't changed overtime.