Wilson, I don't know if you remember me but I was the Leader's Club Advisor at the Y! I'm the staff partner from Rainbow for Extra Life and am happy to answer any questions you have. What's awesome about Extra Life is that you can fundraise any way you're comfortable with. Some of our participants just post on Facebook or send out emails, others host events (pizza night, dine to donate at a local restaurant, etc.) and some even do challenges...i.e. If I reach X amount of funds raised I'll shave my head (or whatever ridiculous thing you're willing to do). You could start a team of your own and encourage friends to sign up too but that's not required. You're always welcome to sign up as an individual or join an already existent team too.
We'd love to have you more involved with the guild (planning team) and see what new and exciting ideas we can come up with!
Hope everything is going well!