My Truxedo LoPro QT is inside mounted. I can't remember how much of it sticks above the bedrails, but3/4" sticks in my mind somehow.
I've seen that cover by Ford, I think, IIRC, the reason I never bought one was the cost versus what I thought was a better one.
Hey, get the Truxedo, or go home!!!LOL
Gotta love those "Bridge Authority" people, eh? Like the tonneau was going to catch the wind?!?!