In the next year or two I'm going to be looking into purchasing a Permanent ice house. I have it narrowed down to two choices I think. Either a 6.5x16' Ice Castle or a 6.5x16' Yetti Outpost. Weight is a big factor, goal is to keep it under 3500lbs. Does anyone own one of these? Looking for reviews. The Ice Castle will cost around $15,000 new and a Yetti around $20,000.