Not the best I've seen...not the worse
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that part is stupid. The legal width in the US is 8ft 6inches wide. They don't gain much by exceeding that dimension and they loose a LOT.
It looks like a modified shipping container. Why didn't they DO that?
Why not take a standard shipping container. (they're everywhere, they're everywhere...and they're CHEAP) Slap an axel under it (or two or three)...presto-chango a trailer (shipping containers are built TOUGH)...glue some solar panels to the roof...cut some windows...do 'stuff' inside.
Instant transportable tiny home.
So SIMPLE
why make it so hard?