Well I will post in hurr as I wasn't on 36 hrs ago.
I was with my buddy at Andreas as he needs a box built and the dude their recommended TC for a box for his Rx-8 as they have really cheap prices. (the guy who works there knows someone @ TC)
They pre-make boxes to fix those harder to reach places so they can offer them at cheaper prices. (the rx-8 trunk opening is like 12" wide)
He hasn't bought from them as they are a month or so away from a completion on the design but I have e-mailed them inquiring about them and have spoken with 2 ppl on the matter....