It’s about time you got that annoyance sorted. You’ve probably been putting up with that scratchy pot for long enough. That string action that you thought you could get used to has meant you don’t play as much. The one pickup that doesn’t work, that you avoid because “it’s ok, I have two others”?
On the other hand, you might just want to upgrade your guitar to get the very best out of it. The pickups are OK, but you are probably wondering how much better it could sound with hand wound, custom built pickups.
By the way, that featured image, the one of the Burns Marquee, is an upgrade featuring Fletcher mini humbuckers and a new scratch plate. I’ll tell you about that another time.