This is a copy of the "Ender 3 External Electronics Case with SD card" by Enjoytheride but I removed the hole to mount the switch because in my install it would be against the side of my enclosure and my lights are controlled digitally anyways.

This will house your Electronics and screen to the left of your printer far enough to get it outside an enclosure. It also has a slot to put an SD micro to SD Card adapter. It uses all the stock screws so no need for any additional ones but you will want some small zip-ties to help you bundle stuff.

I have included all step files so you can make additional modifications yourself.