Kehly, one of my close friends and his brother in law do that ride every year. They always have a ball. My friend doesn't do much riding during the year. His training (if he does any) usually consists of riding around the Bay Run at Five Dock near his work or a few laps of Oatley Park. He might throw in a ride or two to the Gong, but not much else.
He says the ride is usually not overtaxing,