10 days tour from Amsterdam

Hello,
A family of three including a teenage son would be visiting Japan during Christmas and New year. I would be purchasing a 7 day Pass. Please check the itinerary and see if this is achievable. Also suggest if any changes are required.
Do you also feel that I should buy a first class train pass or an regular one will suffice - especially during the holiday season.

Day 01 25-Dec-13 Tokyo in from AMS Tokyo Sightseeing
Day 02 26-Dec-13 Tokyo Tokyo Sightseeing
Day 03 27-Dec-13 Tokyo Tokyo Sightseeing
Day 04 28-Dec-13 Tokyo Day Trip to Nikko and if possible to Kamakura or Yokohama(or suggest us some other important place)
Day 05 29-Dec-13 Kyoto Day Trip to Mt. Fuji and later stay at Kyoto
Day 06 30-Dec-13 Osaka Kyoto and Osaka Sightseeing
Day 07 31-Dec-13 Osaka/Kyoto Goto Hakata. visit Dazaifu Tenmangu shrine when we are in Hakata
Day 08 1-Jan-14 Kyushu (Beppu) Hakata sighseeing and move to Beppu
Day 09 2-Jan-14 Hiroshima full day sightseeing in Miyajima
Day 10 3-Jan-14 overnight by train Travel out to Amsterdam

Regards