Hello Detlef,
Thank you for your comments and the restoration advice.
I don't plan to completely remodel this keris. IMHO this would strip the individual character that made me buy it in the first place. Somehow i like those partially broken or imperfect pieces.
My plan was to clean the blade but leave the overall ensemble untouched. Well... maybe i will try to carve a replacement buntut to make it a little more "displayable".
Best Regards,
Thilo