Reign of Winter is by far my favorite AP. I've successfully run it twice IRL (once PF1e once a 5e conversion), and I wanted to try it out in a play-by-post setting. This desire happens to coincide with my interest in learning PF2e. It is important to note, the Player and GM Core books are my introduction to 2e, and I'd like to stick to the content available in those books to start. If there's enough of an interest, I will make the recruitment post.