Greetings and welcome to our little forum!
What you have is a Maguindanao tribe kris. The hilt wrapping is later and not original to this. That indeed is silver inlay and I believe the blade to be a datu chieftain blade.
As far as restoration is concerned the silver inlay can be replaced. The hilt would be more difficult and I would have to have it in hand. That being said, I would think that the original hilt would have had at the minimum some okir design silver on it.
If you want to talk about restoration services, just email me at
battara@hotmail.com