Walmart offers the Augason Farms Lunch and Dinner Emergency Food Supply 11.07-lb. Pail for $64.68 with free shipping. (Amazon charges the same.) That's the lowest total price we could find by $11, excluding the mention below. It includes 21,020 total calories in 11 individually packaged lunch and dinner varieties.
A close price: Overstock.com via eBay has it for $65.99 with free shipping.