Hi there, I am not and expert but 60 lb leader might be too light for a decent king off the stones. How long is your rod? I would have at least the length of the rod as your leader. FG knot is a good knot specially if you have mastered tying it. I would also recommend a gaff, if you haven't already planned to take one. I have never fished JB but I have fished a few places further south and also Sydney's northern beaches quite often in the summer months. I have a live bait set up and a Stick-bait/Popper set up. It might be over kill to some but I use 100-140 lb flouro Leader. I normally tie a PR knot as I have a bobbin and it lasts all day while throwing big lures. Good luck and I am looking forward to reading your report.