Mate i live in QLD, but travelled through there in 05. Fished Streaky bay for salmon up to 7 kilos, one of the best sessions i can remember, they were every where and huge. Smashing bait everywhere. I used 30 lb braid and 40lb leader, but you could go lighter if you wanted just to catch salmon, but i was chasing Jewies [ SA is the home of MONSTER Jew]. I was using a sliding tee piece with a swivel on the end to attatch the sinker.Down to a swivel that is suitably rated.I was using a general surf rod,12foot 2 piece, the same as you would use for Tailor. . Good luck give us a report on your return!!
Ben