You need to state that enhancements stack or that you can only use one enhancement per maneuver, IE you can't roll for everything the unenhanced maneuver qualifies for.
Insightful motion currently limits one to Masterwork Chain shirt or worse until one can afford mithril. Did you mean "Two or less" or "Less than 2"? I could certainly see it either way.
Also, did you explicitly decide not to include Falling Anvil? I am trying to decide if it would fit. If you just hate FA I very much understand (can't remember who thinks what), and shall edit in my own recommendation to this post at some later point.