I've been monitoring this forum for a while, but just signed up because I thought I could help you with what has worked for me. I haul a Bigfoot 9.5 on a F350 4x4 dually crew cab and tow a 24ft.(box) Pace enclosed trailer for my sandrail. While not full timer or even really long trippers. we have spent around 90 days dry camping around Glamis on occasion. Several things come to mind, and of course, everyone's situation or outlook is different:
I ordered the trailer with an extended tongue, which helps a lot with maneuverability when backing into tight spaces. Also, the longer tongue eliminated the need for a costly extended hitch and it puts the pivot point closer to the rear axle.
While the trailer is set up for the machinery mostly, it also carries extra clothes, coolers, and tools. Plus, it serves as an extra "man cave" with folding tables, and chairs when the buggy is out. When the weather is bad, we invite friend over to play cards etc. in the trailer to pass time. So think some about using your trailer more before going too far with loading boxes on the flatbed.
On the electrical, we have two deep cycle 6-volt batteries shoe-horned into the battery box on the camper and a 100 watt solar panel. Additionally, we have two more batteries in the trailer and a cable to connect the two systems together for extended usage and for charging. I took the OEM converter/ charger out of the camper and installed an Iota 55 amp DC charger in its place. This is a huge improvement, particularly when charging from shore power or from the Honda backup generator. Of course, LED lights everywhere and a Honda generator for time when we need to catch up on battery.
Electronics: TV antenna and signal booster. Cradlepoint router with USB connected data card provides a mobile WiFi hotspot. This seems to have much better throughput and antenna sensitivity than what the cell phones have. My wife, a CPA has worked remotely while camped in the desert with her laptop and printer. Works great but she was not sure it was a vacation!
I seldom remove the camper while on trips. It seems kind of risky to do so as the truck bed is almost 48" off of the ground and things seem pretty unstable on uneven surfaces. If you take risks here, you will someday have a problem, I feel.
