My custom guitar doesn't look like it going to happen. The acoustic science doesn't work and the price to build would be about $4000 per unit. The prototype would be about $25,000. And I've got no scratch to spend on this right now.
Maybe after we sell a few million then I will re-pursue the dream. For now, however, it is in the best interest of the band if I spend my money on the van. A running van means transportation to gigs.