Requirements.

1. Double cab with space for dogs (or a modified single cab).
2. Easy way for the dogs to get into the cab.
3. ISO container corners.
4. Large fridge/freezer.
5. Electric cooking.
6. Electric through flow heater for showering.
7. The Box should be detachable for shipping by container.
8. Easily reachable spare tire.
9. 4x4 driveline and ground clearance (either through portal axles (Unimog) or just big tires).
10. Multiple heating systems, one cooling system,
    • Diesel air-heating system - cheap, Chinese and cheerful (how to connect up to keep box removable?)
    • Electric floor heating system.
    • Small split-aircon unit, completely enclosed in the box, using the same ducting as the heating (must use insulated ducting, can also be used for heating).
11. Electric system of 5kw power (single phase) with 24kWh of power (20kWh net usage) 4xTesla 6.4kWh modules.
12. Must be able 
13. Electric water through-flow heating system. This stops heat being lost when hot water is stored. 
14. Everything _must_ be in the box, no protrusions on the outside.
15. The box _must_ be able to fit into our garage (2.6m entrance).
16. The complete truck must be able to fit in the 2.6m garage with either:
    Deflated tires AND/OR compressed suspension (how we do that is a secondary 'thing'.