Sorry if a little late but this is DAM ingenious. If only my stuff would fit in a 22x13 footprint. But very creative and great find man. Im also looking at pelican cases for my Gobi. I currently sport a pair of 1919 planos but the MAJOR downfall of them is not the waterproofing but the fact you can not sit on them (well at least me and my 220lb self can not sit on them). Thus the pelican remedy. Looking at a pair of 1610 (Maybe 1620s but I like the lower profile of the 1610s). But I just seen this post here and thought I would give props for a job well done.
Also what hammock you running? I own 6 or so hammocks and have just as much quilts for them, current setup is a warbonnet XLC with superfly tarp, Hammockgear quilts, and whoopie slings/ dutchgear for suspension.