The Careful Planning of a Tiny House...or...The Size of My Shoe

Dear Farmer promised to build the Wife a tiny house in lieu of tent camping this year out at the garden.  The Wife has always loved tiny houses, we first started in one(see article: The Movement We Never Abandoned 2/23/2016 ) and the thought of being able to go back into one is a dream come to reality.
But exactly how to build a tiny house for a family of...ahem...thirteen?
Start by checking out the regulations for building a tiny house on wheels.  For a family of thirteen to live in the tiny house for an entire summer and fall...that size is SO not happening. He would need to build three tiny houses...but as we do not have three trailers, three vehicles to pull trailers, or three drivers. We quickly eliminate the wheels and trailer.
Now we are looking at building tiny house on skids.  This way house can be moved from location to location on site which makes the house an option for more uses.  If no one is residing in it, the house can become a storage shed, a studio, or even a chicken coop.
The tiny house will have two doors, two windows(actual double hung windows) and sleeping spots enough for thirteen.

But what happens to all the stuff you need?
Let's talk needs:
Food
Water
Clothing
Shelter

Those are all our basic human needs. Past that it's all luxuries.

The Wife has every intention of giving each child the luxury of electricity, internet, plumbing, fans, heat, and a small space for individual trinkets/toys.
Clothing will be kept in a mobile trailer that we will need to power-wash to get the stink of animals out of(the goats had lived there for a time) and Dear Farmer has plans to make it into a "family closet".
So far as washing those clothes go...a Laundromat isn't so bad, and if the Wife gets desperate to have her arms get a good workout, there's the clothing plunger and wringer secured on a tub.  Old Fashioned has a time and a place.
Now Dear Farmer is in the process of drawing up the plan for the tiny house for the Wife.  He estimates the size to be 10 x 20.
I guess for the summer the Wife will be the "...little old lady who lived in a shoe, she had so many children she didn't know what to do...".  Perhaps, like the Gilbreth Family (Cheaper by the Dozen by Frank and Ernistine Gilbreth) we will have to name the tiny house "THE SHOE".