Thanks everyone.  I had an idea it was nice as did the seller but nobody else had shown any interest.  I am broke even though the price was not too high, he suggested a swap so I went home and came back with a bundle of stuff.  he will sell them and make money on Zulu, Congo, Sudan and others. Perhaps sooner than he could sell the Kukri.  I now start to feel that perhaps I got the best deal, sweet cos I am not a dealer.
Back to the kukri.  I think it is Rhino horn, when I compere it to some other piece which is a bit darker but I have seen some very pale coloured horn.  As to the scabbard, I do not know if it is original or not.  It fits well and the withdraw ware fits the weapon.  This picture shows a better view of how well it fits.