I'm looking for a self sustaining rig to explore North America. Fitting in shipping containers isn't a concern for me, but I'd like to keep the vehicle 25 feet or less in length. The budget would be $250,000. I am not at all opposed to a good quality used unit.
The requirements:
1. Really good off-road 4x4, rear and front locking differentials, winch, decent approach/departure/breakover angles, 3 point camper mount etc.
2. Have or be able to be modded for large solar+lithium battery bank. Electricity the main power source.
3. Bellow/portal access from cab to camper.
4. Large freshwater/grey tanks, cassette or composting toilet, large diesel fuel tank(s).
5. Must be 0F to 110F capable. Double pane windows, interior or heated tanks and lines. Air conditioning and heater systems that are commensurate with these temps.
6. Parts have to still be available.
7. A vehicle cab that you don't have to put ear plugs in at 65 MPH and doesn't beat you to death.
8. If foreign, must be left hand drive and registerable in the US.
I've been checking Unicat and Expedition truck brokers but haven't found anything that meets my needs yet. What route would you take for $250K?