In brightest day / In blackest night / No evil shall escape my sight / Let those who worship evil's might / Beware my power--Green Lantern's light!
This is a Magic Holiday Gift Box. You can probably find one at your local big box retailer for $20 (comes with some packs of cards and dividers as well). I've bought an embarassing number of these just because the boxes are ridiculously useful. As we see here.
This is all 4 RDIs, plus the 4 extra characters. 20 characters in total and 4 drink decks. All sleeved in FFG's clear sleeves.
The green box inside has all the miscellaneous tokens and a bunch of gold. Next to that I've got the sea deck (in the black sleeves) and the 4 mini mats that come with the extra characters. You could also store full size mats on top of the box, if you were ok with it not closing all the way.
The only problem is there's no way to fit the rules in there without folding them up. :/