Where to get food stores in bulk

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Where can I buy food in bulk? Items like rice, beans, canned vegetables, flour, Mre's etc.
Years ago you could get things from the cannery in Newport TN, Tomatoes from Canton, NC, peaches from SC, potatoes from Hendersonville NC, apples from Waynesville NC. Does anybody know if these places are still in business? Trying to build up a food stockpile and I just can't afford the expensive internet stores. I want to be sure I can eat when the economy goes south. Too late. Ok I want to get some food stored before a loaf of bread cost a days wages.

Thanks