Can you add a Topaz or Sapphire line with Enhanced Ki? You have given bards a source for anthem in a Topaz, so why not give monks a flexible Enhanced Ki option?
Currently with the exception of the raid google from the DoJ raid everything that has this bonus is pretty much **** for EE+ content. The outfits that have it are sub-par to the the lv14 White Dragonscale for defense, forget the new 27+ outfits, and the Oremi necklace is garbage with a whopping 6 Con & Enhanced Ki. So, unless you are lucky enough to have the Visions of Precision goggles, you are SoL on having a decent source for Enhanced Ki, and the goggles only apply to three out of thirty levels.
With EE and up difficulty, playing a melee monk pretty much requires you to be in Sun stance to have enough Ki to do more than just use Veil + you Path combos & finisher. If you try to make effective use of the c/c or other abilities from your enhancement trees, while not in Sun stance, you wind up out of Ki and screwed in less than a minute. There is just no balance or comparison between the stances in terms of ki generation.
Mountain is probably the worst ki generation, because if you build your character properly you minimize being hit, and you have to be hit to generate extra ki. A very stupid design that makes that stance especially need a source for Enhanced KI that is not a gimped item in other respects.
This probably does not apply to thrower builds, I don't play them and have no interest in trying them, but they can't use most of the monk enhancements when using shuriken almost 100% of the time to begin with.