Solar panels would provide electricity :D
water... ugh rain barrel?
The school's economic department may let him park outside the building too, if he can work it into a project
but the small houses like these that I've seen, how is there enough room between walls for insulation? I mean I know you can put some between the walls but is that enough for a cold winter?
edit: now I want one too :( Induction stove + electric heater/ac too. And a solar panel on the roof. But I'd need a truck to hull this around. But I could see these being useful for disaster hit areas too. With a few gas generators, it'd get people into a bed/warm space