custom box for 06 chevy crewcab

I'm trying to get a custom made enclosure for my 06 chevy crewcab. I would like the box between the rear bench and the center counsel. The reason for the location is because Ive tried the bts and uts boxes, total disappointment. I would like a 12", looking at the orion hcaa or the jl w7. Ive seen a picture of a f150 supercrew with the same setup. Does anyone have this set up??? sorry, no personal opinions or links to websites. :)