a few thoughts:
If you are done before 9, all the guests will be ahead of you in the hub. While you might make RD, if you wanted to do 7DMT or PP, the line will be very ling by the time you get there.
Character breakfasts are not cheap. I wouldn't want to spend the money for one, rush through it, maybe, maybe not get a chance to see the characters.
I would recommend either do the breakfast, take your time and enjoy it, or do RD. Trying to do both, I don't think you will enjoy either one.