Depends what you think your endgame is gonna look like. But if you think youre gonna be one of the top geared monks on the server, then dex is the build. Sta is the build for second-tier monks who end up with 1 or 2 vulak/doze items. Top monks easily max out STA without buffs. You cant max dex without buff or large sacrifices in other stats.
People on p99 consistently underestimate how relevant dex is.
Here is my Magelo:
https://wiki.project1999.com/Magelo_Green:Meathookk