We are visiting PA July 4 - July 6 (for the One Direction Concert on July 5). I have 13 year old Twin girls who want to see/do as much as possible, including Amish Country. I need a strategy! We've never been to PA before. We arrive at noon on Thur 7/4 and plan to leave at 2pm on Sat 7/6. It's not a lot of time - any itinerary suggestions would be very helpful.