I don’t think what I’m looking for is anything close to a small studio.
It’s exactly a small studio. People automatically assume a four-foot wide mixing console with a glass window and a producer and engineer waving their hands at the singer. My studio is a converted third bedroom with carpeting and ceiling tiles on the walls. I have a friend that regularly records in the studio he made out of his garage with moving quilts for soundproofing. We’re both recording in stereo.
Did you visit the multi-channel recording page?
Lots of good stuff there that people have actually used to record more than two microphones.
Koz