Bill, hey there. The list is looking good. Lot's o' cuben!
I just ordered 6 yards of Climashield XP and 10 yards of 4.5mm silk for a couple quilts.
We've spoken about a system of top and bottom insulation that can be worn, and you have made the tunic.
I was brainstorming on ways to "wear" two quilts in such a way as to cover top and bottom without making slits or using zippers.
My patience is short lived on complex patterns and gear, so I was thinking of how to make it a dead simple wrap.
I'm relaying this to you before I have done any real work on the idea because I know your tinkering with those REI pants and other stuff and it might fuel another direction, or at least you may have some input for me as I get going on it.
There are two main configurations I have been thinking about:
1. Two single layer quilts in similar dimensions to your tunic. In "sleep mode" they are layered on top of you as needed, one or two. This is what you are doing now with the tunic and liner.
In "clothing mode" one quilt is draped with the top (wide part) on your back at shoulders. The other, the same but on chest. They are attached at sides of neck via a button or snap. At this point you are wearing both quilts vertically, with the foot area overflowing on the floor at front and rear of your feet. The quilts are suspended on your shoulders.
I was thinking if you attach the two quilts via a shockcord belt or two buttons at the waist, you could then take the rear quilt below the waist and wrap it around one leg all the way down to the ankles and attach it with buttons/snaps in a couple places. After doing the same with the other leg using the front quilt, the torso and legs would be fully covered. The shockcord belt or buttons at the waist should keep both quilts centered covering your bum and privates, while the lower part of each quilt angles off to each leg.
No slits, no zippers. Full coverage except arms and feet in clothing mode. One or two layer quilt in sleep mode.
Drawback: limited bending over ability. Quilts may bind at waist, like coveralls. Maybe not.
2. Four half quilts. All separate pieces.
Make two top halves of a quilt one with a drop tail (like on a shirt). Wear in same fashion as above with drop tail piece in rear. This covers your top like your tunic.
Make two bottom halves of a quilt. Wear like highwaisted skirt with halves flipped upside down so narrow lower leg dimension is at waist and wider hip dimension is at ankles. Giving a wider bottom for leg stride. The two bottom halves could attach via two buttons or shockcord at the belly/solar plexus, and a couple buttons down the sides to enclose it. Much better movement and flexibility than the first method.
In sleep mode button/snap a top piece to a bottom piece (bottom piece flipped around now with hip dimension at hips) for a single layer quilt. Using existing snaps/buttons form footbox. For the two halves point of attachment should overlap a bit so there is not a cold spot at the union of the two pieces. Do same with two remaining pieces if a second layer is needed. You know have a single or double layer quilt. And an enclosed footbox.
I like this method the best for flexibility and ease of skirt mode instead of wrapping each leg.
No expensive insulated garments to buy, and less gear to pack.
I know this may be hard to follow without graphics/pictures, but I thought I would throw it out there until I piece together same samples.