What's the average grade? That is the key to a climb. A 5% grade is nothing to me. But crank it to 17%, it get's pretty seriously tiring fast.

All in all, from what I've read here it shouldn't be a problem. The descent should be a blast. Love a good fast desecent, especially with some nice wide turns. You should be able to do some sections at 100 Km per hour. Scary at first, but you get used it.