Got some work done on the amp rack/battery box:
Both Lowe's and Home Depot didn't have full sheets of birch, which I find odd. They did have 2'x4' sheets of 3/4", which I used, and BARELY had enough with what I had leftover from the last box. Anyway, still need to measure and cut the two side pieces over the wheel well, because I changed the dimensions a little so the cardboard template won't work. Also need the $150 worth of fans I want to measure and do the cooling the way I want it.