Just off the top of my head, I think you've got too much. If, indeed, TEOTWAWKI occurs, you'll probably have to be moving around a lot --either by well-armed government decree, or to escape the unstoppable firestorms or ...whatever.
And if the "AWKI" part occurs, the situation may well decay to the point where you'd be better off with a flintlock rifle, where you could use matcheads for powder and marbles or even well-patched rocks for projectiles. There may not be much powder, brass, primers, bullets, and assembled ammo available for little old you.
However, that large an arsenal might allow you to buy into the ranks of a local warlord.
(Just feeling unusually realistic this morning.)
Terry, 230RN