I would love to see some close up pictures of the blades and handles.
As for the toli toli. These look like well made examples, but they indeed appear to be recently additions. I wonder how the original scabbards where.
Sometimes the bottom of these scabbard are very well made with wooden buntut. Now the old original wooden buntut are simply removed to add a silver example that is not original.
Sure, it is silver and looks luxurious, but it is a later addition and out of its context. I am not in favour of this.