What kind of handle for a Piso Halasan??

[Athanase]

Hello,
I bought this Piso a few years ago, but it was missing the handle.
I would like put a new handle but I do not know which style is the most suitable for this model.
I thought of a handle similar to piso gading (wood, bone, or bronze?) Because I like this shape very much.
Or a more common hilt of antler (Sambar), but often there is a bronze "selut" (I don't know the name) at the base and I don't know where to find it.

I'm aware that the blade of my Piso Halasan is of low quality and "rustic".
So I'm looking for a simple form that is compatible with the style of the scabbard.

(PS : Sorry for my english still bad )