Designed some various power brick mounts that fit a few 3d printer related bricks I have. The bricks are pretty generic so they may fit yours as well.

You can price a "slice" of one about 2 mm or so to test and see if it will fit yours before modifying the design.

Bricks I designed for:
Phrozen sonic mighty 4k
Anycubic wash and cure
Form labs form cure machine

I printed on the short side vertically with tree supports for the support plates. may work either way but i wanted that to be the stronger side so brick doesn't break it (hopefully)

20-25% infill probably just fine.