I would do Safari first thing in the morning without a FastPass and then do it again later in the day with a Fastpass.
If you go when it's hot, I would definitely FastPass Kalo River Rapids. Quite honestly, I think the ride doesn't live up to its hype, but lines get long.
Your third fatspass is dependent on what works for your family. If you're going to do Everest, that's an option. But, Dinosaur might be an option as well. It's a good ride, but not necessarily worth a 30-40 minute wait.
Festival of the Lion King and Finding Nemo are both very good shows. I've seen both many times and do not tire of them. Also, if you have time, make sure to see Flights of Wonder.
And, I echo the lakeside view at Flame Tree Barbecue. One of the best in all of Disney.