Yes! It's possible, I did it with a G5 cheeseboy.
I bought a case of a guy who had JB-welded a silverstone (iirc) motherboard tray into it.
The front panel connectors were really fiddly to solder on as I am no expert, but the biggest nightmare was with the PSU placement due to dimensions of the original apple PSU, more like a server PSU.
Is this still broken?
2x 256GB SATA SSD
Dell P2418D 1440p
Dell U2414H 1080p
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