Hey PD, I'd bet that there is no way it's happening, but just to make sure we cover as many possibilities as possible . . . what about Danley tapped horns? Yeah, they're big, but maaaybe shallow enough where you could put it right against the front wall, behind the TV pulling your rack out 11 inches. I think that's how deep rmk's TH-SPUDs are. Of course, he uses them as a riser, which I highly doubt you guys would go for. Anyways, I'm pretty sure they can do any finish for you, maybe send/tell them what your paint is or something. Of course, this is for the output route. The one I will have is 16" deep, but I figure you would want the shallowest possible, with a TH.
Or just get the SVS. Just know that they are a lot bigger than the JL, almost exactly twice the volume.