Shanxi - datong hiking tour questions

Hi,

I wish to follow the itinerary above (Shanxi-Datong hiking tour). Would appreciate if you can help me out on the following questions:

1) The coach that leaves datong to hunyuan (8:00 am - 18:00 pm), what is the interval time between each bus ? i.e. 8:00 am followed by 8:30 am etc

2) What is the time table for the coaches leaving hunyuan coach station to mt. wutai ?, i.e. (8:00 am - 18:00 pm ??) and interval between each coach ?

3) What is the coach fare for question 2 above ?

4) I want to climb east peak (Wanghai Peak) and also South Peak (Jingxiu Peak), what time should I start my journey ? and where can I get (rent) the van mentioned in 2nd last paragraph above ?. What is the fee for renting the van ?.

5) After mt. wutai, I want to go to taiyuan. What is the mode of transport to taiyuan ?. Do I need to get back to Datong to catch a train to taiyuan or can I go straight from Taihuai town to Taiyuan ?. What is the fee ?

Thank you for your kind reply.