Hi way 550 in a big coach

I strongly recommend you do Search on here before thinking of driving Hwy 550, aka Red Mountain Pass aka Million Dollar Highway). Having done it many times - and an experienced mountain driver - I flat out do NOT advise you do it. Two lane road, little shoulder in many places with severe dropoffs and no guard rails, hairpin turns, etc. You have to take into to consideration also the drivers coming against you that you have no control over when they take their half out of the middle which, incidentally, you will be forced to do many times with your rig.