You should be fine, as long as you've done online check-in, and are ready to head right out after checking in. We were due to get into MCO at 11:30, but got in early, about 11, headed straight to ME, where there were HUGE lines waiting to board all the busses. It took us 40 minutes to finally get on a bus, 10 minutes to board everyone and their luggage.We were lucky enough to be the first stop (CBR)., and were the first ones off the bus, and at online check in, and even though our room was ready, we just checked our carryons with bell services and hurried right to the bus stop, where we waited at least 30 minutes for the HS bus. I swear 8 other busses came before ours did. We finally were walking through the gates at HS exactly at 1pm. Our reservations were for 1:30. There was just my 22 son and I, though, and we were dressed and ready to move, having already changed into shorts prior to the flight, and had our park bags packed inside our carryon. Plus, we move fast! Take all this into consideration with the larger group you have, and how well you will move as a group!