I see the logic in buying by the thousand - I do it. You know what size a slab of 250 is - no way you would get four of them in a box like that one you showed - 250 perhaps
I have one lockable toolbox that will take 1,000 - its about 3 foot long whith wheels and a pull handle
Why store them in an ammo can as such? I like them discrete and out of sight - a chest of drawers works well (cheap from a charity shop but you need a strong and solid one) as does a metal filing cabinet (dirt cheap from auctions)