Smallest case for an SFX PSU & AXP90-X47

I'm building 5 computers for my business and ideally what I'd like to have is something as small as possible, that has an SFX PSU on one side, and a mini-ITX board + Ryzen AM5 CPU + AXP90-X47 on the other side.

Kind of like a Terra or FormD T1 with absolutely no consideration for a GPU... I want a small square sandwich layout with room for an SFX PSU on one side and a mini ITX board with 50ish mm CPU cooler clearance on the other side..

Any ideas? I think what I'm looking for is like the Gemcase C9 but not as flashy or expensive