I just came into possession of a full grip assembly for a kyu gunto (finally!) and strangely enough, I don't have any seppa with the little rectangle cut out for the catch release. If anyone has some of the (what I assume to be standardized seppa) for the machine-made kyu gunto blades, let me know! I think I might need 2-3. I am also looking for a steel saya that would fit. Hit me up if you have any of that!