Here's a couple of 'customs' I did back in the early 2000's. They're sorta based on the Buck 560's. The small one uses Buck 112 parts, with stainless steel 'skeletonized' grips over brass liners. The big one uses Buck 110 parts with Titanium 'skeletonized' grips over brass liners. This was the first and last time I will work with Titanium.
Titanium is scary stuff to machine. It's not like other metals like steel, brass, aluminum, or even Delrin. It machines more like hard rubber - like hockey pucks. You don't know what it's going to do.