Riserless MOBO - s37- frame / Rig solutions

I see a ton of frames out there but they are only for builds that use risers.
Every single solution for riserless already comes with mobo and other parts…

So seeing as I already have my server PSU’s s37 riserless mobo and all the parts bought and no frame to put it on im stuck trying to figure out what to do.

Nothing I find seems like it will facilitate this setup…

A lot of people keep telling me to just put it on 2 pieces of wood or cardboard but I really think thats just pretty sloppy and haphazard.