Still deciding on the fate of my drawer system, but in the meantime I've quickly put together a drop-down table for my rear door. Works brilliantly using a piano hinge and factory mounting points (from the plastic cargo pockets that were once there.) For support I'm using a monopod, which I can easily lower and raise to get the table level. Makes for a great, convenient camp kitchen setup. While I wouldn't sit on it, it is strong enough to hold the camp stove and other items.
After using the table on a recent camping trip, I had the brainstorm to add an extension. Using C-channel I already had when building the drawers and the first generation tables (picture in this thread on page 51, post 502. The table top was stowed under storage drawers via C-channel. I pulled them out and used the monopod for support. I liked the idea, but the working height was a bit too low and they weren't as functional as I had hoped) Using the aluminum C-channel at the end of the table-top extension, I mounted it backwards so it would mate with the tailgate table. I drilled holes through the aluminum channel and table and am using cotter pins to securely connect the two pieces, and again, a monopod at the far end for support.
This setup will, I hope, give me ample room for things like a prep area/cutting board, dish washing, etc ... with an easy to setup and breakdown kit. I need to finish the wood but haven't decided if I should skin it with metal (most likely), or use a waterproof wood finish. I have a Kirkhams awning that works perfectly to cover the rear of the Trooper and provide a covered place to cook, sit, eat if I need to be out of the elements.