Raspberry Pi 4 Case with fan and XL4015

I couldn't find a proper Raspberry Pi 4 case with fan and voltage regulator, so I designed one by myself.
It's not fancy, but it does the job.

You will need additionally:
1x Raspberry Pi 4
4x M3x30 countersunk screw
1x 40mm fan
4x whatever screws are needed for you fan
6x heat inserts, M3x3
1x Hohlbuchse (coaxial power connector?)
1x power switch (KCD11)
1x XL4015 voltage regulator module (no guarantee your module has the same dimensions as mine)
2x M3x5 for the XL4015 module