im planning a thru-hike in 2013 and am trying to decide between buying foods in bulk and dehydrating them, or buying food along the way in towns, or a mix of both. i don't know the availability from stores and really don't feel like carrying a pack of canned foods to the top of kathadin. i have a dehydrator and vaccum sealer and work at the local grocery store so i get a good discount. what do you guys suggest?