Think LIGHT!! Trust me!!!
What are you moving it with??
Build a sturdy floor, and keep all the rest as light as possible. 2x2 framing with metal exterior is best in my experience, then insulate with 2" closed cell foam, or spray foam.
Do you have a sleigh to move that thing on?
Its hilarious at the end of ice season on scugog watching guys trying to get thier huts off. I pull up to mine, back the trailer up to it, hook it to the winch on the trailer, push a little button, and away it goes. Throw a strap front and back and away I go. One man show, with an 8x10 ice hut in tow. No need to call in all my buddies for help, no need to worry about it being frozen in.....takes me about 10 mins to put it on the trailer MYSELF! I can also push it with one hand myself if I want to just move it a little closer to the hot hole
It doesn't need to be sturdy, it needs to be light, and easy to move around!!! Ask me how I know.....I've had several heavy huts, and I learned my lessons the hard way!!!
S.