Visit Qingchengshan from Chengdu

Hi,
We are going to visit the mountain next Wednesday, we will take the bus from Xinnanmen, are there bus around 9:00. Do you think that if we leave by 9:09/9:30 we will have enough time to visit the mountain? How much does it takes to climb it?

How about Leshan? We will take the bus from Xinnanmen, the bus will leave us at the feet of buddha's or we have to go there by bus/foot? How long does it takes to get there from the bus station and then to visit the buddha?

Thanks!
Luisa
Italy