Have you considered fiber cement siding? Not saying tip up concrete won't work but it seems like a lot of work to reduce fire risk. And 'out of the box' house construction generally leads to lower resale values if that is a concern.
Actually I think it is going to less work and headache especially when you look at long term maintenance, material storage and repair issues.
I can have the premixed sand/ag delivered by the truckload. It isn't a propriety product, can sit outside year after year and doesn't deteriote. Ditto rebar, mesh, galvanized studs, galvanized floor decking and plate embeds that I fab myself.
The portland cement obviously would need weather protection and does have a shelf life with absorbed moisture.
Admixures need protection from freezing.
The wall panels, shell etc could sit for years uninstalled or erected without deteriotion worries.
The proposed wall panels 9' high x 12' wide are load bearing, high thermal mass, prefinished except for paint and caulking around the perimeter, impervious to bugs, birds, wind, water damage, fire and typical sized falling trees.
Requires zero maintenance other than paint every 10 years and that perimeter caulk every 30? or so.
Other than the insulating foam (I may go a different route) there is nothing to burn on the entire structure = no fire insurance required or very low cost = total that up $$$ over a lifetime.
I don't have to drive 65 miles to a town, Home Depot, Lowes, whatever, only to find out the screws, nails, Simpson connectors, ICF block, SIPs panels, siding or fill in the _____, is out of stock, ordered the wrong size, putting a stop to the project.
I don't have to look for anyone qualified or skilled to help with any part of the project except perhaps the alt heat and drilling the well.
And I don't need a "crew" to pour and finish a 2yd panel, or to install it. Me and someone that can work a concrete rake and a garden hose to clean the mixer and tools every 5 days or so. Even that is hard to find!.
All at an estimated $3 or less per sq ft of wall panel.
What other system comes close?
Finally, I guess unless you have lived in a remote, sparely populated, rural area, you have no idea how difficult it is to get materials, help, contractors, etc.
Anything that I can do that eliminates someone, some product, or weather dependent DRAMATICALLY saves time, money and frustration.
Incidentally, I stopped by one of the plumbing supply places in town and they have a guy that designs hydronic floor systems.
So I went back to his office to talk to him.
I told him of my building plans and was thinking of a hydronic floor system and what would be some good heat source options.
Gas or electric he said.
I said what about wood?
His reply "you don't want wood".
Asked further he said it is a lot of work, and that he doesn't know anything about wood boilers. lol
That is why I am here.