There is another, more flexible (from a design perspective), and more cost effective method - the one we use for commercial projects large and small here in North America and for many many large projects and even small homes in Europe.
We all understand how ICF's work and even how un-insulated lightweight foundation walls are formed and shored. A crew of 2-3 guys can form up an average sized home in an easy day. No machinery or equipment needed. Form it up, and call the concrete truck.
For Floors/Ceilings - The system is called Aluma Dek. 2-3 guys in less than a day can form up (errect and place) a floor in your home. Again, no machinery needed, no special tools and you call the concrete truck. The system also allows you to "bow" (forming a pre-stressed floor) in any larger span as required with a simple "twist" of the adjustable drop heads/jacks.
https://www.youtube.com/watch?v=TjwIdXH5w8A
We rents lots of equipment here in Edmonton and Calgary and can recommend an appropriate local contractor to come out for a day or two and set you up and manage your pour.
We can even do your engineering drawing for you if needed.
Just another option for you.
Concrete is going to be more expensive compare to conventional framing/foundation work - but the results are a far stronger, more energy efficient home.