Japan 3rd visit.

Hi Niki,

Third time is the charm! As you'll likely get to see places most first time visitors never do.

The first thing I need to point out is that I would NOT stay near Shin-Fuji station. This is an industrial area with nothing of interest at all, not any good transport options to explore Mt. Fuji from. If you want to stay near a Shinkansen station, then do Atami, Mishima or Odawara, but avoid Shin-Fuji!

Now to your questions:
1.) Yes, but you may still need addition transport around mt Fuji (see: https://www.jrpass.com/blog/itinerary-tip-mt-fuji).
2.) There is so much to do, my recommendation. Do the Hakone Circle.
3.) Tell me what you like, and I can give you some tailored recommendations :)

Kind regards,
Daniel