I know this is not what you were asking but I figured if you were looking to mod a Sage, I would share mine. Over the years I have changed it quite a bit.
1. Rasp and sand paper to take down blocky appearance give some smooth curves. 2. sand off finish and dye the entire thing using vinegaroon. 3. remove brass plunger adapter and cover hole with a "lucky coin" my four year old nephew gave me.
4. antler nub limb bolts. 5. snake skin limbs.
People have a hard time telling its a sage except it says sage on the limb. lol.
Msturm