Need tour assistance for 9 days!We must be back in Beijing to catch our return flight at noon on August 30th?

My husband and I will be ready to leave Ulan Batar, Mongolia on Aug 20th. We would like to visit the Giant Pandas Breeding Center near Chendu, the Tianamin Shan cable Car to the mountain top in a neighboring province, and also the Sichuan province. We must be back in Beijing to catch our return flight at noon on August 30th. Can you help suggest an itinerary and tour guides? We are both very experienced world travelers and have been to China many times, but never to these areas.