Prefabricated concrete-wood-steel house for the homeless and the starving

Cheap prefabricated concrete-wood-steel house for the homeless and the starving.

No need to put foundations or bricks, a small crane is all that it is needed, the alloy posts with slots to hold the walls are put into concrete into the ground and the concrete floor panels are laid directly on a leveled ground.
The roof uses concrete panel walls that slide into slots on the wall below while some wood beams hold the roof via brackets and bolts.
two top windows let light in that is filtered trough the ceiling skylights to brighten the inside .
The kitchen has the usual commodities plus a 3 level wood heater that also cooks using the hot charcoal from below.
Being mostly concrete it withstands fires won't collapse during earthquakes or hurricanes.
The home size is 7.3 m wide at one end (L shape) x 7.3 m.
It shouldn't cost more than $6000 and can be put up in a week or less.
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https://3dwarehouse.sketchup.com/model/d27a1af8-5312-4855-9e67-f5da731a07e0/Cheap-prefabricated-concrete-wood-steel-house-for-the-homeless-and-the-starving