Jinshanling-Simatai Hike

Appreciate clear answers from those in the know:
1. I understand Jinshanling has been reopened since October 27th. Now, what is the actual status between Jinshanling-Simatai? It seems the hiking route between Jinshanling-Simatai West (what I know is NOT all watchtowers on Simatai East is open) is possible. Can anyone confirm this?
2. From the above, can anyone explain what are the charges for tickets/admission? Do I need to buy two tickets if I start at Jinshanling and finish at Simatai West? If so, what are the charges in January 2018 for both sections and where do I actually buy the ticket for Simatai West (where is this border)?