Last year, a bunch of us had fun on this ride (except when my guni malfunctioned and I became a bowling pin), and Roland became one of the most recent members of the Century club.
From past experience, I can tell you that you want to get there (and start) before the official 5:45 am start time. An early start means a much greater chance of actually finishing the whole course.
Drop me a line (on this thread or a pm) if you’re interested. I’m planning to attend.