Yup, most Everests with mortals are in the 14 hour plus range, and are no joke for a day on the bike. Glad you got it working, so you can get a better picture of the day ahead. There are a couple of other Everesting thread here that are worth look for good info.
- Everesting & VEveresting - Discussion, Planning, Training, Tips, Etc
- Everesting Opinions
- Gearing for Everesting challenge
Not to mention the main Everesting site and a couple on FB if you follow there. Worth doing LOTS of research for such a big day.