Well Thru-Hiker.com is not answering calls or shipping until mid/late January, so I ordered elsewhere. I purchased my 800fill down directly from Feathered Friends, and they recommended Seattle Fabrics, so the 1.1oz ripstop nylons came from them.
I still have yet to completely decide on what to officially make. At first I wanted a 5' x 7.5' x 2.5" rectangular blanket, then I was going to taper it down to a big roomy footbox. My ground pad is a behemoth 25" x 77" x 2.5" Therm-A-Rest Camp Rest, plenty of ground insulation for 4-season use. It's surface is also soft and nice next to the skin. I think I am going to make a blanket which affixes to the bottom under-edge of the pad via long nylon tailing strips with velcro tabs. The long sides and one end will have a full length 1" wide strip of nylon sewn to it, and on this nylon will be a strip of ultralight velcro (the loop portion). Bordering the matching edges of the underneath of my pad will be the velcro hook strips. This will allow me to fully secure the quilt when it's freezing out, and just drape it over, or roll back one side when it's nice out. It will be a hoodless design, so I will use a down hood (from my future down jacket) or TNF Windstopper Highpoint Hat to battle the cold. I also have a silk baselayer Balaclava made by silkskins that I can use. It will also be roomy enough for lots of twisting and turning, and the use of a down jacket when the temps really plummet.
I tried getting a light color for the top, and a dark for the bottom. I wanted black underneath and sky blue on top. I ended up with my sky blue for the top, but the darkest color they had was navy, so that will have to suffice for the bottom. Weight should be somewhere in the vicinity of 1.5lbs for the blanket. I'm willing to go up to 2lbs though if I feel like overstuffing (which I ordered enough down to do). I'm going to try it out in one of my tents before sewing up the side with various amounts of down. I want a comfortable 20* quilt when used in combination with my Camp Rest pad.