We've full-timed for 16 years and lived like we would in a home and cooked the same way. For the two of us we don't go through a lot of dry foods so we never stocked up. We buy fresh meat and veggies. There are groceries everywhere. We do buy paper towels, toilet paper and drinks in quantity but that's it. We have Tupperware containers in our cabinets that hold one 5lb bag of flour, sugar, etc. but we don't buy it in excess. Why carry all of that around? One thing you might do is to first test your basement area a season to make sure you'll have no easy rodent/insect routes to deal with, especially if you don't use a sturdy plastic container. Safe travels.