Is JR pass worth it for my IT (Osaka-Tokyo-Kyoto-Okayama-Hokkaido)

Greetings.
My parents and I'll be travelling to Japan for 15 days in April 26-May 10. Our plan is the following:

April 26: Land in Osaka Kansai
April 27: Osaka-Kobe-Himeji Castle-Okayama-Kurashiki Bikan
April 28: Osaka-Wakayama
April 29: Heading to Sapporo via airplane
April 30: Sapporo
May 01: Sightseeing Sapporo-moving to Hakodate Hokuto
May 02: Sightseeing Hakodate
May 03: Hakodate (shin-hakodate-hokuto st.) to Kyoto with Shinkansen, transit via Tokyo?
May 04: Kyoto-Nara
May 05: Kyoto-Arashiyama
May 06: Moving to Tokyo with Shinkansen
May 07: Sightseeing Tokyo
May 08: Hitachi Seaside Park
May 09: Moving to Airport Hotel Haneda
May 10: Flight back home

I heard that there are some shinkansen for the route Tokyo-Kyoto, also Nozomi which is not covered by JR pass. I have searched with navitime and google, but couldnt find if the Hikari shinkansen that is covered by JR Pass still available.
Should I purchase a 14-day pass with this IT?
Thank you very much for your help!