If boondocking where you went in your TC is your top issue, evaluate the C by its height and width, the power of its engine, the number of tires on the ground. Will the unit you are considering actually fit into those spots? If you want a long unit, will the rear end drag?
My Tiger is a small C built on a 4x4 Chevy chassis. It goes just about anywhere that my driving skills can take it. It fits into spots where a taller and wider TC cannot go. It is probably smaller than you want, but Tiger does build some slightly larger units.
http://www.tigervehicles.com/Most of my trips use 2WD and high clearance far more than they use the 4WD features. 4WD is usually for getting OUT of the difficult places, not for getting there in the first place. The truck has a limited-slip differential, which helps when more traction is needed.
If larger living quarters are most important to you, you might get a C which can tow a smaller 4WD vehicle to be used for exploring.
Happy trails!