I am excited by the potential for the ATC to gain critical mass to really work well with a lot going on. I could see doing the skiddable rocket sauna as a track all its own to create a building that could be a rocket sauna or an insulated living/sleeping pod that a future homesteader could build at some convenient time and place (like after work in the winter in a suburban garage) from readily available local materials (both industrial scrap and local) then take to their site and use while they are building their site infrastructure. Unlike a $1000 camper this structure could be comfortable, easy to heat, easily repurposed as a guest space or sauna when the "big house" is done and not waste away as a toxic eyesore. A basic skiddable sauna build would include simple round and milled wood carpentry, straw-clay or other natural insulation, cob, and a cottage sized rocket heater. If we get a good crew we can add to the skill building by harvesting and milling at least some of our own wood, improvising latches and hooks and other accessories from found materials, building or repairing our own windows etc.. Stretch goals could include adding "life support" systems such as catchwater, outdoor shower, a basic bucket compost toilet, and a basic but expandable solar charging system for lights and phone and battery powered tools. Some of these elements could easily become their own course. The idea here is to gain experience and confidence and perspective in creating a handsome and functional and expedient portable shelter.