Quick update from the past couple of days. I pinned and glued most of the two part pieces and filled the gaps using epoxy putty. Below is the robe piece in a vice while the epoxy glue dries.
I took some videos of the processes while I continued work on her. Seams were filled with epoxy glue, then once the glue cured, I threw on some epoxy putty, and finished the rest of the night puttying the hair and other pieces that needed it.