UPDATE 2: Redesigned - beefier middle part and more mounting options - ideal for fitting a RPi Can hat (HermitCrab)
UPDATE 1 : I also added frame to go over the display - just use double-sided tape on the inside.
I was looking for something like this for a while so I took it into my own hands…
Simple open case/stand that fits Waveshare 4.3inch display with mounted RaspberryPi. Added also a space for 4010 fan. I'm using it for Klipper and it works great!
Assembly is easy, you just need 8x M2.5 screws (length 10-16mm).
No supports/raft needed.