Not much money, but time out the arse.
So far all I've bought are 2 pieces of plywood for speaker box and console both. 1 piece of plywood will be plenty for the console. Besides plywood, all you need is misc screws, nails.
Jeff,
no I don't have it upholstered yet. Planning on going tomorrow to talk to the guy. Just today finished with the vents for the amps and heat routing. I figured out what to do with the heat duct. It has three outlets, one on each side and the one in the middle. All I did was remove the duct from the heater. It has baffles in it to route the air to all three places. I removed some of the duct and blocked the middle one off. This lets all the air out the two sides. Then I put a small round vent in the drivers side of the console so air could come out. Once the duct is put back on, it works great.