Here are some before pictures:
I ended up having to get all my hair in several stages. First I used scissors and cut most of it off, then I used buzzers to get more of it off, and finally a razor to get it as short and consistent as possible.
Here are the results:
I decided to leave my facial hair because that hasn't started to fall out yet, so why shave it? It was weird to have to worry about keeping the facial hair even on each side because it was opposite from normal: instead of keeping the top, I was keeping the bottom.
I also have a picture of almost all of the leftover hair, at least the big chunks: