I would run 50 pound power pro. Its tough to beat! Other option is 65 pound. Diameter gets too fine if you go any lighter; and make sure to use the proper knots! Shimano Calcutta is far, far superior to an Abu C3. GLoomis has some excellent rods for kings. You'll pay a little more, but well worth it.
The Nush is a different animal than Lake Creek. Big, wide, deep, slow, with smaller average size kings. Lake Creek is fast, rocky, with many kings breaking 50 pounds. Whats good for the Nush may be light for lake creek.