In case any X100(s) users are interested in a focus ring with or without tab, I got mine today. Here is a short video of mine (with tab). For those that manual focus and/or are familiar with Leicas with focus tabs, this will feel familiar and natural.
Creator, who I am not affiliated with, is on fujix-forum.com. Don't wanna post the link to buy it from as I don't want to break any forum rules.