I've fished the Hawkesbury many times over te years nd have used prawns, phillies, yabbies, pudden, cook gut, Marinated chicken breast & bloodworms.
The best baits I have found to be bloodworms & yabbies. I regularly use marinated breat and have bagged some monstrous bream on this.
The other secret is good berley. I have used wheat, chicken pellets & currently use Stimulate pellet Berley.
Anyway, good luck,The department of war and finances & myself are heading up there for a fish on Sunday.
Tight lines,
Wassa