I've been reading this thread for 2 days or so now, and it's a fantastic read. And I started reading the BJJ techniques for the build some had linked from original post. And I have a question, why not make the Monk aspect Way of the Shadow, and use shadow step to jump 60 ft into the air for free? (assuming you can grapple in an area of low light of darkness.) Though as I just read the shadow step rule its a bonus action, but still is effective.