This is exactly what I use to put in my carto's (blank ones) they are big enough to hold the ce2v4's with the wrapping on them. I use small caliber plastic boxes (also available on Amazon) for atties and the el cheapo cartos.
This thread got me searching for awesome cases...I think I just found my juice bottle case.
Amazon.com: MTM Deluxe 100 Round Magnum Rifle Ammo Case: Sports & Outdoors
On the inner lid, put a map of your flavors by row and column, like B9 is cherry, C10 is RY4...etc.
ice