I tacked in the latches to the drawer fronts and used 1/2" all thread to mount. This was accomplished buy drilling 3 holes on each side of the latch, nipping the all thread at about 1-1/2" and then welding them in. I backed the inside of the drawers using this plate too. The drawers and deck are 3/4" maple ply, dadoes in the bottom and rabbited on the front and rear and then glued and nailed with 18g brads and then painted in left over floor paint. The top and sides are lined with mat used on rooftops for sat dish mounts since it was free and the drawer fronts and sides are cheap truckliner spray and then JD blitz black. The aluminum is the cheap stuff from the depot. Anchored with the existing 3rd row seats bolts and rear tie down bolts.
I used the rear pillar seatbelt mounts for extinguishers using some 2x3 aluminum angle, nipped the corners off the 2" side, shot JD Blitz black and mounted. Used the existing 3rd row grab mounts for quick fist mounts to get a shovel and axe mounted.
Still have lighting to do but it's 90% sorry the first vid is so loud, inside the parking garage and it echoes pretty loud when I slam the drawers shut.