Add another $5000 for concrete (if required) and basic landscaping and you have a 1500sf "house" installed for $30,000-$40,000 + the cost of the land.   

Give us concrete figures -  Numbers don't lie..... 

Any concrete examples of this are very much welcomed!

1910 Home, 3250 sq ft, concrete/plaster walls, 3 story with basement/crawlspace, brick exterior, needs a total rewire.

After that we ripped out the carpet out of the bedrooms and sealed the concrete floors with a different Kilz paint.

ERGO the cinder block house with concrete floors and metal cabinets and exterior doors in the interior..

He includes a good deal of concrete metrics and advice that should answer a lot of your questions.

I have done flooring, tile patios, hot water heaters, masonry work, molding and concrete work on personal projects so I know some about cost of repairs and timelines of projects (Always over on both from my experience).

How the drawers work - I do the work (example roof, siding, concrete), then I contact them to inspect it.

I can find it for you if you quick if want to share the towns the houses are in so i can give you a more concrete example.