I know this is from two years ago but did you ever figure out if your plan worked out . I have thought of the same thing since times are getting tough and very expensive, people need an offgrid home that wont cost too much to heat. If you get back to me I'll show you my plans. Its a 20 x 40 hoop style greenhouse that I'm hoping to build, with my trailer inside and a woodstove, vented on top and both sides with solar vents, in the summer i will roll up the sides and leave a top canopy on to protect the trailer( that leaks a bit) i think its a great idea!
judyrosehall@gmail.com