Chailord- I'm wondering how a race report have anything to do with recommending someone places to do hill training?
Bullsgarden road may be a little steep for a steady hill climb as asked for- maybe he should just do the loaf?
Brunker is good as it's fine for big chainring-do it myself when preparing for races. Pacific Highway may be a little high on raffic depending the time of day you ride there- then again Brunker maybe likewise.
Perhaps the hillls towards North Belmont along past Bennetts Green- traffic also.
I'm sure you're a big boy tho, make sure you eat your wheat bix!