AM Solar lists 400 mA lithium battery system as a total of 180 lbs using the space of 2 batteries. Not sure of the specifics, but eliminating propane and a generator would eliminate a lot of space/weight. Using Truma/induction cooktop would involve an inverter, (not sure how big needed with Truma?). I would only count on enough solar to keep the frig going, which might be a challenge living in the pacific NorthWet. Besides $$ (which would not be spent on gas/propane/generator), what makes this impractical?