Whoa I wish I had that kinda of money. Well congrats bro sounds like itll be off the chiznet. Keep us updated on the progress.

On the exhaust I'll say 3 inches is about the max you want on the exhaust. I use to have my LS1 in a TA but its going in my truck now. It had long tube headers, no cats and the loudmouth it was awesome gearheads (including myself) loved it. Then you had a few that said "its too loud or it rasps too much". I thought in was great, well thats my input.

Are you running your own custom fuel lines or are you reusing the truck's?
well good luck.