I rented a bike in San Diego for a 4 day trip. Like a previous post, the Hog Fly and Ride deal is a bit cheaper for HOG members but you have to book in advance and it is not very flexible to move at the last minute.
If your travel is not definite and could change or you are looking to ensure you will hit good weather, it may be worth trying to simply rent yourself through local dealers. Due to flexibility issues, I chose to book myself through a dealer. I saved more money on the flight by getting a great deal from the airline then I could have ever saved on booking through the fly and ride program vs. renting myself.
There are several webpages on the "Tail of the Dragon" and they describe the traffic, scenery, hazards etc, depending on the time of day and time of year you intend to ride it. I am sure it will be a great trip! Good luck.
Just be prepared for some sport bikes to pass you at a high rate of speed. During the week and not during "rush hour" if you want to soak it up....
You will definitely sharpen your foot pegs/floor boards....