Nice blade Lew, with what appears to be a form of "standing" pamor pattern.
It's can be hard (for me at least
) to determine origin when all you are presented with is the blade, especially with the Bugis, who as we know, got around. But i think your choice of a Sulawesi hilt is as good a guess as any. It seems to suit this blade well.
Now...to find a sheath.
