The only question I can answer is the one about the prices. I believe the Sunrise Safari is $55/person for ages 10 and up, $27.50 for those under 10. It includes a buffet breakfast at Tusker House.
The Sunset Safari is $150/person for ages 10+, $75/person for kids age 8-10. (The tour is not open to kids under 8). It includes dinner at Jiko. According the the DVC public website, the Sunset Safari is "available to all Disney's Animal Kingdom Lodge Guests".
There is also the Wildlife Discovery Excursion. It is available to "Club Level Guests at all Walt Disney World® Resort hotels". I don't know the price of that one.