Hi, I'm stay at Chengdu Liwha Times Hotel, 95, North Xi'an Road, Jinniu DIstrict, which is the easie

It is about 4.5 kilometers away from your hotel to the center, so taxi is suggested. The fare is about 15RMB.
From the city to the Leshan Buddha, you need to go to Xinnanmen Bus Station to take bus to reach Leshan in about 2 hours, and then you can find the local city bus to reach the Buddha. If you can start your journey early in the morning, one day is enough for the trip.
Jinli Street near Martial Marquis Memorial Temple is a good place for buying souvenirs.
As for the taxi fare from airport to your hotel, the distance is so long, so the taxi fare must be very high. It is suggested to take the shuttle bus to reach the downtown area of the city such as Minshan Hotel or the Train Station and then take taxi to reach your hotel. Then the taxi fee is about 15RMB.