Long term supplies of freeze dired foods ain’t cheap, so my guess is this would only play a part of your plan.
http://www.thereadystore.com/freeze-dried-food-storage/supply-size/1-year-supplies
A few cans of powdered eggs are good for stretching other foods.
http://store.honeyvillegrain.com/powderedwholeeggscan.aspx
As Freddd says - I shop Honeyv. now and again.