Im sorry but I literally lol'ed. Its not that serious to store grain. If you are buying in bulk, chances are you are brewing a lot. If it lasts a year or two, stored in reasonable conditions, you will be totally fine.
If you purge your containers with CO2 and then vacuum seal them, I would think it would be something you could ship to the moon and leave it there until civilization moves there. Then you could wait for the moon civilization to collapse and ship it to mars and wait for THAT to become habitable and have your 25th generation decendants thank you for storing it properly.
But I think its overboard for a normal homebrewer's use.
I put 2 row sacks in a brand new garbage-type bin, lined with a plastic bag and the bag the grain comes in. When I open it, I just push the bag down to push out air and then wrap the bags around it. Put the top on and voila: no moisture, no bugs, no mice. Simple.