I have a C40 that I reknotted with a TGN two band extra and it's my go-to. I cut out the old knot, drilled out the old glue and such, then used fishing weights in the hollow handle to add extra weight before filling with epoxy and setting the new knot. It turned out looking like a brand new brush once polished up a little.

Glad you found your brush. My grandfather's disappeared after my grandmother died and it still bothers me that I never could find it (or his 3 straights)