Badaling great wall of china

Which one has a cable car which goes up ? Which one is famous? a)Badaling or Juyong pass? we are visiting Beijing in early september, so we want to know which side of great wall has a cable car which goes up and down? Does the cable car goes from down and goes up to tower of wall? can I take cable car both ways? I understand some of the steps are steep especially going down! can one climb the st eps and while coming down, can take the cable car? How long the cable car takes from bottom of the wall upto top of tower of wall? Does it stop in the middle so one can step out and admire the view? Are there western type or fast food restaurant at Badaling great wall of china and is there a western toilet(washroom)at Badaling great wall? How long it takes from downtown beijing(wangfujing area)to Badaling great wall?Thanks a lot for your advise !