I am trying to plan a trip to Ireland and Scotland, but have to take a flight from Dublin to Edinburgh for one of my tours. My plane lands an hour before my tour heads out. Will this be enough time to get through customs and go to my tour? I have to take a bus or taxi to get to my tour. Also, how early do I need to be at the airport to get through customs in order to leave for my flight? Any help is greatly appreciated. Thanks!