You can make your own survival food storage on a budget easily. See here:
The full article links to a page showing you how to dehydrate your own foods. Then you can vacuum seal your foods yourself.
The next step is to prepare your DIY survival food packs for long term storage. This means protecting it from not only the elements, but also from mice, moths and other pests.
Get free food grade buckets from restaurants, donut shops or grocery stores. Clean them out and put your vacuum sealed food packs inside the buckets and seal them away for survival.
Re-use empty juice containers to store grains and rice safely long term.
Store your foods in a root cellar or unheated basement where the temperature says relatively stable year round. As long as the buckets stay dry and out of the sunlight, your food should be good and fresh for many years to come.
Not placing your food in a bucket or plastic containers allows free access for pests to eat it.