i fished the rocks for years for kings.. hooked plenty landed few big ones , if you serious about avoiding the bonnies and are float / balloon fishing
1.use a small bonnie live ( cut 1/2 to 3/4 of his tail off), or a big pike, or best ever bait would be crickstump size garfish or maybe big live squid
2 use min 50lb line - i prefer mono, but i'm old school,
3. 80lb leader about 1.5 - 2m long, we also fish a 6m double with a plait
4. use an overhead like a tld with a free spool clicker setting
5 min 15kg rod - and make sure you clip down or you might loose it
6 use gimble or not see fathers day
7 get a big gaff
and you most likely still won't stop him
thats my 2c anyway
cheers grant