If I arrive at the Chengdu Panda Breeding Center at 7:30 am on a Saturday morning in early July, how much time would I need to see the pandas? I was wondering if I could see the Panda Breeding Center and make it to the Chengdu airport in time to catch an 11:00 am flight to Xian?

I am thinking of hiring a car and driver to take me to the panda breeding center by 7:30 am, from a hotel near Tianfu Square, and then to the airport after that. Any idea how much it would cost?