Which rail pass and for how long?

We have a complex itinerary for almost 5 weeks and I need advice on which plan to purchase and for how long.

1. Arrive Fukuoka
   day 3 travel to Hiroshima
   Travel by train to Otake and return to Hiroshima
   Day 5 Travel from Hiroshima station to Takahama station
   ( next few days we will be traveling around the countryside privately with a friend) Day 10 travel from Kochi to Awa Yamakawa station
   Day 12 travel from Awa Yamakawa stion to Takamtsu
   Day 14 Ferry from Takamatsu to Naoshima island
   Day 18 travel to Kyoto
   Day 21 day trip travel from Kyoto to Nara and back to Kyoto
   Day 23 travel Kyoto to Nagoya
   after stop in Nagoya continue on to Odawara train station
   day 26 travel from Odawara to Hanna Sation
   day 27 travel from hanna Station to Saitama
   Day 28 travel from Saitama to Tokyo
   travel around Tokyo by train for 7 days
   Day 35 travel from Tokyo to Haneda airport.
   Day 35 travel from Tokyo