Totally agree most of your budget will be spent on cold drinks for keeping you cool.

If you can, stay at one of the resort hotels. Explore in the morning before the main heat of the day, go back to rest or cool off in a pool, and then go back out for dinner and the night shows.

Some of the more popular rides have machines that will give you passes for them. It chooses a time for you, but it can save the headache of being in line.

Unfortunately, not familar with dining passes. Never took them up on the offer.