if your willing, I'd love to make one for my use up here in New England winters. design plans would be awesome to go off just to save me the time. I'd be willing to send you out a case of some of NE's finest microbrews in exchange =P
I'd build mine for -20F so some extra down fill would probably be instore, or a built in layer of IX or insulbrite type material maybe?
I'm thinking also a "stronger" cuben for the hammock section with the "weakest" for the baffles, I fluctuate in the 160-180 weight range so I'll have to see which strength cuben would be the best for me.
How about Saturn-5 or Mercury-1 for a name....this is ground breaking in our field of passion. I bet many think like I do that this HamQuilt is the next generation to target.
I showed a pic to the little lady who sews for me and asked her if she wanted a challenge, she told me to find some one younger who knew more about computers! She's 77.