Of course! Here is the PSU Foot:

www.thingiverse.com/thing:5793825

For my PSU it was a bit too thick, but I managed to mount it anyway.

Here is the Cover I made myself:

printables.com/…/601820-voxelab-aquila-psu-cover-…

And fan cover is just some basic 92mm cover, there are plenty out there.

The Mainboard housing also is my own creation, but I failed horribly with the screw holes for the board, so I strapped it in there using cable ties for now. I have to make another version some day that is good enough to be uploaded.