My wife and I have had good luck dispersed camping on BLM land. We would just look for a spot off a forest road. Was able to camp on the south rim of the Grand Canyon for free.
https://www.blm.gov/programs/recreation/camping
"Camping on public lands away from developed recreation facilities is...
I went with portable. While camping, I also park in the shade. Helps keep the interior of the vehicle cold so the fridge doesn't have to run as much. I do want a permanent mounted roof top panel as well, for city parking. something that can keep charging when I can't put a panel out.
I mounted some home made tables in the same location of your drop down. They help keep everything in while traveling, and get out of the way when I set up camp. Plywood and some folding leg hardware I found on amazon. Tables mount with wingnuts
I use a Coleman Grill/stove.
https://smile.amazon.com/Coleman-Camp-Propane-Grill-Stove/dp/B00VTJGWQW/ref=sr_1_8?ie=UTF8&qid=1509023571&sr=8-8&keywords=coleman+camping+stove
I like having both options in 1 unit. It works well for 6 people.