Since this is unibody, does that mean the front of the truck bed and the back of the cab share the same wall? If I put a Tanneau Cover on the bed where does the water goes that comes from the top of the cab and down the back window? Does it just pool up trying to work its way out to the sides increasing the chance of more leakage into bed than on normal pickups? Not a deal breaker and not canceling my order but I am curious about this.