Yeah, I hear you and you are probably right.If they're not comfortable.. I guess they would not be posting stuff for sale in the first place, but anyway.
My room is about that the same size as yours, I went the diy route as well..
Just a simple desk, monitor mounted to wall, diy monitor stands, and I built the rack cart on the left that houses interface, headphone amp and computer.
Regardless, I like your setup. I really like the way you mounted the mic! Nice job.