Thanks.
I wanted to make something that was not gothic or desert but also modular at the same time.
These MHUs are made from 3 bits.
The end module, the door module and the window module.

The small is just a door module and 2 end modules.
The medium is a door, 1 window and 2 ends.
The large is 2 ends, 2 window and 1 door module.


My idea is that the OKI Corporation take the customers orders based on what configuration they want.
Fly the modules to the colony world and then assemble the alloy polymer modules and add the O-krete which covers the modules skin and whilst that hardens they go indside and connect the plumbing and electrics and so on.
36 hours after they land with the bits they leave the planet having installed a fully operational secure safe place to live.

I figured if you want to colonise a planet you don't want to have to start making quarries to get the stone, you don't want to make a metal works to get the steel.
You don't want to have to take courses in plumbing and electrics and house building.
You would do what you do now, buy a ready built house.
Only difference here is the OKI Corporation deliver the house to you!

truth beats fiction: http://www.concretecanvas.co.uk/

I did some work with them - the module arrives as a meter size cube. You pump water into it, it expands out into a concrete dome that's solid within a day. Brilliant guys too.