Assistance with Borneo item

[VVV]

Rick was correct, close ups did help a lot.
I think it is a Javanese kudi (not kujang, sorry for the confusion but I often mix them up on which is which).
The holes and the fret work are more Javanese in style than what it looked like from watching the first picture.
Several resembling kudi variations can be found in the Leiden collection database.

Michael