should I or shouldn't I change and repair

[A. G. Maisey]

Is the wrongko original to the blade, or are we looking at a collection of mated pieces that could have been put together by anybody?

If all mated, try to get a better fit of blade to wrongko, replace hilt with a more correct one, mount and display hilt separately.

If wrongko original to blade, replace hilt with a more correct one, mount and display hilt separately.

Alternatively, sell as is with provenance, unless you feel some particular connection with the keris itself, that is, the blade.

Personally, I'd move it on as quickly as I could.