yea it was a headache deciding what to put in the truck, i swapped my seats to buckets and have no center console, this is what my 12w6v3 box looks like. also built by Chris (CSCStang)
http://www.caraudio.com/forums/enclosure-design-construction-help/615120-l-wedge-singlecab-box.html
oh and yea the sop is right though this thing actually puts out and since you'll be literally next to it like me, you'll need some decent speakers. I'm giving mine 150w and it drowns them out. but then again my choice wasn't really a set of components that get loud.