How to reach the pulley station if I will be coming from Badaling using Beijing NorthRailway Station

I want to travel by train from Beijing North Railway Station to Badaling. I believe that the ticket station is just few minutes away from train station. However, I want to try the pulley climbing the Great Wall. Based on research, railway station and the pulley station is some distance away. 1.) Can anyone tell me, what is the easiest way to get into the pulley station from Beijing North Station? 2.) Let us say I used the pulley climbing the great wall, how long it will take for me to go back down to the great wall main entrance by walking?