Screw them and their tags..
hey paul if you are into it... id definitely be interested in one... wouldnt need a sink or heater but a nice 6" hole in the roof for a stove pipe would be ideal... also the fold down table/bed/bench is a great idea... aluminum frame as well would be ideal as it would never rot and would be lightweight
I think convenience is what I would be looking for here. I agree with eliminating the gas fumes (propane heaters,etc) if your going to snooze in it but don't think I'd want to be cutting and lugging firewood around. Those infrared heaters they have out now are suppose to be the cats ass and very efficient, might be an idea.http://www.globalindustrial.ca/c/hvac/heaters/electric-infrared?infoParam.campaignId=T9A&gclid=CLP8xP2htqoCFcjrKgod7zpK6whttp://www.farnorthsaunas.com/infrared-heaters/?gclid=CKzKu46jtqoCFcPBKgodmAxO7gLots of different models and ways to use them. Plug in boxes or permanently wire the shield model to the ceiling.
If you didn't need a sink or heater could probably go a bit smaller. Let me put one together wildmeat and see how feasible it is.