Hope you clean up this blade a little bit. It does appear to have some light surface rust that should be easy to attend to. If i am not mistaken it also shows a very strong chevron about a quart from the tip showing a well quenched blade.
Since you live in Malaysia it should not be too much trouble for you to find someone who can craft a suitable sheath for this keris and an appropriate pendokok should not be difficult to find either.
