Well as far as foundation is concerned, 24x24" patio blocks with cheater blocks on top would work well, You should inset a heavy screen in between floor joists to keep rodents out, and depending on the climate insulate over top of that.
You could then build your walls in 8x8 sections, dry fit, number each piece transport and reassembale on site or buy/ rent a gen set and do it all on site, that is what we did for our camp which is boat to only.
When or if you get started keep us up to date in the bragg section of this site. & Welcome to the site, enjoy your stay,post often, its a gret site.
Mike
