No suggestions, just wanted to chime in--I admire your sense of adventure! Or maybe Nou is just more malleable than my kids. Our boys either sleep very little or not at all when they're anywhere that isn't home or when they go to bed at any other than the usual and routine. They could be well into their teens before we have the nerve to ask them to sleep (as opposed to run, shriek, deconstruct, squirm, etc.) in a tent.
Would love to hear all about where you decide to go once the plans are made. Are you thinking about a small local area, or something truly different like Yellowstone, Rockies, Grand Canyon, etc?