If you are looking to add wuxia level play to Legend of the 5 Rings (L5R), then Feng Shui is a great pick. L5R has a great setting and could easily be converted into a high cinematic (less gritty) game.
I'd suggest that you modify the gun shticks to allow them to be used with bows/spears/shuriken. Though I think Two Bows Blazing might be a bit over the top. Maybe Two Arrows Blazing or some such.
The L5R clan schools can easily be converted to martial art paths or shticks; you'll have to make some decisions about the energy cost (Fu).
A couple of things in L5R that you might miss in the conversion are: Honor and Glory. This may be a minor issue depending on the game you run.