10 days in Japan and using JR pass

Hi,

I will be going to Japan again in May 2016. My itinerary will be as follows (not yet fix. still planning) I'm planning to buy 7 days JR pass and start using it from day 1. Please advise if there is any other cheaper way I can plan this trip.

Day 1 - Arrive Tokyo Narita Airport. Activate JR pass. Go to Hitachi Seaside park.
Day 2 - From Tokyo go to Hiroshima
Day 3 - From Hiroshima go to Kyoto
Day 4 - Arashiyama & Nara
Day 5 - From Kyoto go to Kawaguchiko
Day 6 - From Kawaguchiko go to Matsumoto
Day 7 - Kamikochi
Day 8 - Tateyama Kurobe Alpine Route. Start from Matsumoto, Finish at Toyama
Day 9 - From Toyama, take the night bus to Tokyo (since this is the cheapest way because can no longer use JR pass)
Day 10 - Arrive at Tokyo early morning. Fly back home at night.