re: Followup questions on wall repair

That gap is probably due to the different edge rib height. If you have it sealed well on the outside, the inside gap is no problem. I would caulk it however. Any weeping from the outside should travel down and out and not inside (keep the gap open at the bottom of the panels so any water will go to the ground).

That insulation gap can just be filled with what ever and the vapor barrier taped.