Good idea about the more traditional Farcluun. I’ve changed my mind about Farcluun being a templar, but the backstory works just as well as a psion/wizard.
I’m looking forward to seeing your builds. Try Kalak. I don’t think I’ve ever seen him written up, despite the fact that he is the SM most likely to have a violent encounter with the PCs (assuming the PCs are front and center of the revolt)