Wondering if the small propane tanks (like for a gas grill) are cost prohibitive compared to having a huge silver tank in my yard. It would be for a remote cabin with a small gas cooking stove and a small gas refrigerator. One person, full time. Wood heat. Could I just use a small propane tank for each appliance and switch them out when I go to town (as needed)? Are there different size small tanks? I'm talking about like at Lowe's or U-Haul, etc. I wonder about privacy with the guy coming in to refill the big tank and also tearing up the ground.