we have a 72 overlander, think put it in as 70 when re-registered.. we made it thru our second winter, and this was a cold windy one but we kept warm, we totally restored with new wire,plumb insul furnace tankless waterheater, tub/shower new aluminum interior new air etc. total restore and lived in so far over a year. we are building house and prob will sell in spring to help pay some taxes we owe ugh i will miss our little home. it kept us warm and cozy and held up well thru all storms. 4 layers of bubble foil insulation we made out great even at 30 below andhigh winds