Looking for a semi-permanent solution to storing a full size 35" spare and a full complement of trail tools, I used the base of a subrban 3rd row seat and built a carrier of sorts. About two years have gone by, and the rack has proved that, in fact, it was designed to haul people; not tires and tools. It's in sad shape. So began the redesign process.
It will be of a "double-decker" design. Two 29"x11.25"x12" storage boxes will occupy the lower deck along with the 15 lb CO2 bottle stored at an angle. The upper deck will hold the spare tire, Hi-Lift, and the shovel/axe combo. The rack will also have a spot for storing a winch bag, pintle hook, 2" ball hitch, and some other small stuff. It will also have a lot more bracing than the first rack did. I have kept the clips than use the floor mounts, so the rack will remain removeable. I chose 1"x1/8" square tube.
I'll update this thread as progress is made.
I'm working on it tonight, and I should pretty much finish it. Here's what I have done so far: