DCC-EX case with a 20x4 LCD display ( https://a.co/d/5B3bz1K )

Boards are mounted using 3mm screws
I have included 2 different tops -

DCC-EX Case with 20x4 Display - top: has no extra openings

DCC-EX Case with 20x4 Display - top-2: has 2 extra openings in the back for GPIO wires to come out. I made the openings at the edge of the case so no extra supports were needed and also so you can take the top off and on without having to worry about wires being connected.