I think a motorhome would be your best choice, especially with a 4-down toad. My wife has health issues that often prevent her from assisting, so I do it all. Setting up the motorhome itself on a site doesn't get much simpler. Pull or back in, run down the leveling jacks if you have them, plug in the power, connect the water and sewer hoses, and you're done. Oh, and connect the park TV cable if available. I usually don't bother with the sewer hose until it's needed. Interior setup usually just involves setting out items that were secured for travel, such as a laptop and perhaps kitchen and bath counter top items. We just stow the loose counter top items in the sinks.
Unhooking and hooking up a toad by yourself is not difficult with an all terrain tow bar. Unhooking just involves disconnecting the wire harness and possibly a brake cable, and then making sure the toad is in park or gear, releasing the arm locks and pulling a couple of pins so the arms can be folded up at the back of the motorhome. Worst case, there's some slope at the site putting pressure on the pins, so you release the arm locks and move the car a few inches to relieve them. Hooking up of course, is just the reverse. Even checking the toad lights alone after hooking up is not difficult. I have a wooden stick cut to the right length that I wedge between the motorhome seat and the brake pedal, and turning on the 4-way hazard lights can be a quick directional check.
