I used basically 4 whole skeins of yarn. I did do the sewn bind-offs and it wasn’t that bad.

I did the collar as written but the head hole ended up too small to go over my head, and I have a tiny head. It was probably at least partially my fault because I didn’t count how many stitches I picked up. I ended up ripping back to the last row before the purl row and did Jenny’s surprisingly stretchy bind off, and I think it worked perfectly!