I would encourage you to take a long look at basement spaces. Yes, in the South I think you would be looking for high ground or some pretty tall cable-lifts. Typical foundation walls are stiff enough to contain everything so you can “treat” the room with whatever materials and maybe break up some 90 degree angles. Good start on soundproofing and isolation. Usually handy to the mains breakers.
Add: Dehumidifier
Add: Dehumidifier