Build has started. Put an ad up on CL asking for some help from a carpenter, met up with a dude who seems pretty solid, so we're starting off. It'll be a slow build, but that's ok.
Plan right now is 9 triple 12 enclosures. While a triple enclosure is a little weird wiring wise, I can make it work, doing quad enclosures was a little taller than I wanted, and double enclosures... well, just too many of 'em.
Dimensions are 16" wide, 43.5" tall, 18" deep. Double thickness front panel, recessed driver. Minimal bracing. Was going to use baltic birch but decided to go MDF for cost and easy of accessibility. Original design was 20" deep but last minute I changed to 18" for just a little less impact to the living room walking area. There are some jokes about how 2" can matter that I'll leave alone for now.
Sold my ultimaxes, but they aren't picked up yet. I told the buyer I would try to blow them up before he gets them haha.
Pics once we get rolling with some product.