David, if you might swap out for different stuff, I might consider commercial products. There is pre-fabbed kit that I am thinking a lot about buying from Danley, and while the time line is probably too rushed for you, the DTS10 is selling for 1k until the end of this month. It will then jump to 3x the price. I think someone says it's the equivalent of 6x PB13s, though that could be BS. It doesn't start rolling off until 11hz, which to me is insane.
What's nice about products like this is their size and weight; harder to steal. The DTS10 is 60"x42"x16" if I remember correctly, and weighs over 300 lbs.
I want to say again that I'm really sorry. Over a year ago, my friend was burglarized, and lots of stuff was stolen, including a PJ that she used with her art. I started a thread here about a replacement PJ/gift, and a different thread about how to catch a theif. Her BF, myself, and my brother tried to do a stakeout on a setup meeting/purchase. His computer was also stolen, and happened to be of a very specific and rare design (he only found 10 for sale in CONUS). The guy was a no show. We found out quite a bit about this "suspect" (there is no way we can be 100% sure it was him), but a lot of things sort of pointed towards this person. See, the police wouldn't do anything until we had solid evidence, and getting the computer would be that evidence. The main hurdle was that there were surely pics of the owner on the computer, but the owner had to be the one meeting because only he could recognize the computer. We wonder if he was recognized in advance, from a distance.