You could always get a push/pull volume pot. It's probably only worth wiring the neck pickup to split as well seeing as the red Lace Sensor that Billy had in the bridge is voiced like a hot humbucker anyway.
I actually have a gold/gold Dually in the neck of my SG wired for coil splitting. I'm gonna be honest, I've grown to dislike it slightly, it's just TOO clean, doesn't have any real character. Soon as I have the money I'm replacing it.