.....one other issue is insulation...with a used rig of any kind-it will pay back any insulation in 3 years-heat or cooling....a guy with modest tools could remove interior walls and roofing and insulate with SPF or even chunks of insulation board with spray foam around the edges to keep the wind out and have a very comfortable unite with low HVAC issues.....From MY point of view.....at my age I need comfortable surroundings or I head for a Holiday Inn and get a room at $110 a nite so the insulation pays off quite quickly....with out a permanent spouse one might get away with discomfort for some time-but it won't last forever.....geofkaye
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