Flagstaff to Sedona? Safest way with a Class A + tow behind?

89A is fine except for that one section 15-20 miles north of Sedona where the elevation changes dramatically with lots of switchbacks. The hill is less than a mile long, but not for the faint hearted. A storm came up as we were going north (up the hill) and it was white knuckle for me. I think without wind and rain, it is probably ok.

17 to 179 is a lot easier drive.