[David]

I don't really have much to add here and i am basically in agreement with Alan Milandro and Detlef.
The hilt is indeed out-of-culture, but i'm not sure it is a Western design. Something about it (perhaps that mother of pearl inlays) leads me to think of the Philippines as a a possible origin. I can't place the blade, but agree that it probably Balinese.
I would leave this odd ensemble as is also.