Guess I'm coming in on the tail end of this thread.
That just looks awesome. I can't wait to see it upholstered! For the amps, you should find some 12v fans and put one on each side of the box to get a pass-through affect. You can just wire their power up to the remote wire going to the amps.
I love that steering wheel! Very classy.
Keep up the good work so we can all enjoy it!