I'm sure Tyler (Chip N Dale.........the transportation expert over here who is a Disney bus driver) will agree with me...............YES, there will be buses early enough to get you to the AK for your 8am ps. I would be at your resort bus stop no later than 7:15am, although personally I would be there at 7am. This will allow enough time if you just missed a bus. Contrary to what most Cast Members will tell you, there are early buses specifically for the various breakfasts and tours going on every day througout WDW. Please do not drive your car for your early breakfast as you probably will not be able to get though the gate until 8am which means you will be late for your ps. For some reason the AK gate rarely allows cars though early. Only Disney buses are allowed in before 8am.