I know the feeling, my hands were so frozen I was worried I couldn't brake last time I went down Seymour.
I did the triple crown two years ago when I was in better shape with a few friends:
https://www.strava.com/activities/197218715#4644281035
I started at the Ron Andrews Community Centre in North Van. I live in Richmond as well, but I didn't want to add another ~50km to my ride...