Animal Kingdom in 1/2 day??

[hojo]

I am trying to visit the AK in a 1/2 day with family (wife, two boys 4 & 6 and me). Our departing plan leaves at 3:00 on 10/2 and we are staying at the All star movie. This is our last day here and I am trying to squeeze this in. I was thinking of a taxi to the airport to save on time rather than the disney bus service. Can I do it without getting too stresed??!!??