Don't get me wrong - this is one of our favorite all time drives and have done it several times.
Just letting people know relative to doing it in an RV; and when you do - with or without your RV, remember that your half is to the right of the center line.
It is all a matter of comfort for yourself and your level of experience - I am an experienced mountain driver but I do not have the desire to do it from a comfort level nor the trust in the inexperienced drivers.
I got some great photographs yesterday.
Sorry about double posting earlier - website here very bad at times.
(Not you, 2gypsies!)