I would plan on driving school, flying school, boating school, the 4d movie, a
Lego Mindstorms class, a walk through mini land, the 2-3 roller coasters, the water ski show (if he likes cheesy shows - the water skiing is actually good

), 2-3 other big kid rides, and some time in the Build/Test area or the Games Zone or walking through the old Cypress Gardens (which is beautiful). I'd finish the day with some Apple Fries (the best food in the park, at least for us

). You can get this done easily showing up around 9-10am and leaving by 5pm to get a nice dinner somewhere and be very happy with your day.