Need to mount two computer cases on the wall, one on a left wall, one on a right wall. So what I really want is something modular that will look good with tempered glass on left or right side, and can be wall-mounted. Open cases are fine too as long as they are modular so that they can have all the buttons facing out. Anybody have any advice? I can't seem to find anything like this outside of $300+ per case.

Cause you want such a niche product, I mean its going to cost you $$$ simple as that.
I guess you could make one but then time = money as well.

Didn't realize wall mounted + invertable mobo would be so hard to find

So... an open frame case?

Can you link to one that meets the criteria please?
The issue I've been running into is - an open frame case that works well on one side, say, the left wall, would then have all of the cords hanging out of what would now be the front, when placed on the right wall. (Sorry if I'm describing this poorly)

Mirror opposites wouldn’t be possible, one build would have to be upside down/inverted to do what you need.

what if they are both upside down

Might help to draw a pic...

Wouldn’t matter, same rule applies.

Something like this. But there are radiators on the floor all around so the tower can't go on the floor. I'm looking for something I can buy two of and mount one on the left wall and one on the right wall, and have a decent symmetry.