Other than the Chalk Hill Climb, which is about 7 - 8% for about 1/2 a mile at the end, (estimating from my GPS data) it is very similar to my local ride, very rolling, very curvy.
Sounds like the route on my tri except I have more downhill. It's 2 X 10k laps with one short but steep hill (9% for .5km) and lots of turns. No use for aerobars so I'm taking them off and losing a lb. I hope to avg about 18-19 mph on the bike.
It is never too late to be what you might have been. ~ George Elliot