if its a tele.you can just cut a hole on the pickguard to fit a humbucker.unless its a non pickguard tele.
Anything can also be doneJust bring it to KC from Maestro Guitar to enlarge the route
Shouldn't cost that much I guess. He did a rout on my guitar for just $50 and he took only 1 day to get it done. Did a nice job on it as well.