TERRIFIED of heights, narrow roads with drop-offs, etc.

I know what you feel, and I have the same problem. And the front seats of a Class A make it even worse. That is why I do not do large cities with high traffic overpasses. I go long ways around to avoid such places. And, everyone else be warned, If I do have to take such an overpass, as far as I am concerned, there is only one lane and it has a white line down the center to guide me. and a low speed limit. If you are behind me, tough!!