I would suggest dividing your carbohydrate storage for variety. Wheat/flour, rice, oats, and even potatoes makes for a better diet than exclusively one of the four. Diet fatigue is a real thing. I'd put corn meal and perhaps barley on the list too, but the LDS doesn't have either available in their supplies, and they doesn't have a long enough shelf life for my taste (from any source I am aware of). Besides, I don't like barley and don't have any recipes where I would eat it today.
Variety is everything, with food and with other storage items. I love my shotgun for home defense. In the unlikely event of a longer-range encounter that poses an immediate danger so that I feel a need to participate, my shotgun is not going to be the best choice. That's long rifle time, whether AR-15 or something bigger with a scope. As for concealed carry, none of the long guns qualify - handgun time. Variety is everything.
Diet fatigue is overhyped.
Trust me on this.
I'm on a very restricted diet due to allergies and you get used to it and if you are hungry enough, you are grateful for what you have and it still tastes good.
The only thing I ever used barley for was Beef Barley soup.
Corn meal makes great corn bread but you can only so much you can use it for, unless you lived like Little House on the Prairie, where they lived on it.
Most of the world lives on what we would call a very restricted diet.
We are spoiled with the variety we have available to us.