Hey Rob, that's the same track i followed with this hilt. I think these rings and mendaks often go missing on Bali pieces because they are often made of precious metals and at least low grade gems that people can sell off. I got this hilt without this ring, but it was obvious it had one. A cilinder from the top fit into the bottom leaving a groove for the ring to ride in. So i had this ring commissioned by our own Battara. I gave him a lot of trouble making this ring right

but i'll bet he would be willing to do the same for you now that he's had a bit of practice making them.