Well, I don't know if it is sufficient information for new Koftgari. It seems to be rather faint to me.
As with regards to the scales, while ebony may be hard to find, you certainly have alternatives to the grenadil. Walnut is rather easy to find. Mahogany and palisander are also quite easy to get from old, broken furniture. In the end, I guess that any kind of hardwod would do since it can be dyed to look almost like ebony, but...
... probably will look better with black buffalo horn.