I have been to ocotillo wells. I took this 92 bronco I had. Thing was badass. Flat black, fox shocks, MT tires, 302 straight piped.
Anywho, I went for a jeep event called "Tierra Del Sol." It was cool. Lots of off roading to be had out there. Whether you are into the low speed crawling or the faster long travel off roading.
I would recommend staying the night out there. Get fire wood, air mattress, tent.....beer, **** it. Also, bring another truck. My bronco broke out their due to some heavy wheeling. Some "sand people" straight hooked me up with some parts and tools. But, I drove that bronco their, so, if they had not helped me, I would have been in **** creek. Stranded.
Have fun and post some photos of your truck in action.