I'm very familar with Rio Rondo. I think you might be wrong about Kings tools being to big, I have his medium set and do 5 inch saddles easily with them. The smallest set is really small, the charts don't give a good perception of the size, call him and tell him what you need and he will tell you if they will work for you or not. They're nice people and don't mind talking to you and he hand makes his tools and will make what you need. I have a small basket weave stamp that will put 4 rows on a 7/16" wide belt keeper but I don't remember If it's craftool or King so they're out there.