My MLD Soul Side Zip Bivy has a Ti Wire built into the hood portion of the bivy that is removable.
It does not make the hood area free standing, but helps create more headroom and keeps the bug netting off my face.
I cross my poles above the hood area and tie off a cord from the bivy's built in loop on the hood to my poles to keep the hood suspended above me.
Not exactly what you are looking for, but close.
In my case, I have the eVent fabric, which pushes my weight to 13 oz.