I used 1.1oz ripstop from DIYGearSupply for an outer shell, Nobul1 for inner liner, and 850+ down from Wilderness Logics for my quilt. The nobul1 really does feel great, but it isn't 100% downproof, which means I wake up with little fuzzies all over me. I don't think the loss of down is fast enough that it'll ever compromise the insulation of the quilt, but it's messy. I probably wouldn't use it again.
The 1.1 ripstop shell is great. Low cost, light enough weight, confidently strong, and a bit of water resistance as a failsafe. It makes just a bit of crinkling noise as the quilt moves around.