Scott Wilhelm: I think that last post was the most constructive (and constrictive ... see what I did there?) post that I have seen from you in this thread. I mean it. Good info there.
I would also point out the value of Grabbing Style for Monk. However, it has a deep caveat. First, unlike most other Style Feats, Grabbing Style requires that you have Flurry of Blows if you are getting it via your Monkness. By RAW you could still get it as a bonus feat from Master of Many Styles though I wonder if the designers had it in mind to specifically not allow Monks who forgo the Flurry of Blows ability in favor of another archetype ability to get this feat. My personal opinion is that this IS what was intended, but again... nothing by RAW disallows this. Some DMs may rule otherwise. YMMV
Secondly, if the DM does rule against this you could still get the later feats in the chain through MoMS but it wont matter until you meet the prerequisites for the first feat in the chain and get it as all of the later feats say, "When using Grabbing Style...".
Anyway, these feats aren't strictly required to have an effective grappling build but they do give some interesting options. It is too bad that Body Bludgeon is a Rage Power rather than a feat... Improved Ki Throw is similar but you just don't get the same distance. It also has some odd requirements.