Michael:
I was following that one too and don't recognize it as an established sword style. Even managed to get in a bid that fell way short. I don't know where it's from but the blade struck me as a modified European saber. The hilt seems to show some Sumatran/Aceh influence, while the terminal "bud" does look a little Visayan.
Maybe a custom assembly for a European living in Sumatra.
Ian.