I decided not to try a pea pod style mod on this because, I figured, for an ultralight UQ the best thing is to cut off the metal zipper sliders, hood, et al.

Now I have a roughed-in down UQ 72" long, tapered 54" at the head to 30" at the foot.

The cast offs and left-over down fill two one gallon ziplock freezer bags.

Now I must sew on or fashion channels for the shock cord suspension.