Hello again folks. Trying to gather as much info as I can before bringing my girlfriend on her first backpack this weekend. Planning on hitting the Moriah Brook trail around 2:00pm on friday and hoping to make it to the Imp campsite by 4:30-5:00...what are the chances the tent platforms will be full?? Is there an overflow area?? I have the same questions for the Perkins Notch and Spruce Brook shelters...are there tent platforms at Perkins?? Muchas Gracias.