Do you have a preference on the fireworks you want to see? MK, EP, HS? If you are considering starting at AK and then moving to MK for their fireworks later, that would be a good plan for us - but we enjoy the attractions and animals at AK and could easily keep occupied past 2PM. If you hop to MK, LTT would have to be a very late lunch or dinner. You could plan on a 1:00 lunch at AK, catch a bus to MK by 1:30 or so, and be in the MK by 2:00. Then you just need to be strategic with your G+ and ILL selections across the 2 parks.