I don't think I'm allowed to play yet because I'm still in the construction phase.
But if anyone wants any construction pictures, I have a basement finishing thread with pictures of the theater.
I went the full soundproofing route with clips, channel, backer boxes, dedicated HVAC, double 5/8" drywall and Green Glue.
I just started the subfloor in the theater. Then it's on to the riser, columns and fabric.