They stole my idea.
think it would be useful if you could have some type of insulation in the walls, roof and floor durring bugout in the winter here and would be used for "first winter" or "first year before something else could be built.
I figured any vechicle could pull it if you keep size and weight down.
My idea would have lower layer with a couple of 55Gal drums , one for each type of fuel and one water.
a portable genrator would also be included with remainder packed with food and onther items.
the top would a series of stacked panels, that you pull off and build a box.
the panels would be specialized for wall or ceilings.
ceiling you could add PV
goal was to build a 10x20 ft building, with food and fuel in no larger than a popup camper
to bug out to new location you would hook it up and go.
one the fuels would be gas,and a a 35 gal tank in my tow wehicle i would have 90 gals of total fuel with a 55g and can go 1200 miles plus.
i would drag it up north, to an undisclosed location

and wait it out