How to Effectively Using 7-DAY JR PASS and Ordinary / Green Car

Hi Daniel - san

I kind of have a plan for my trip to Japan in April next year and we're hoping to get the 7 Day Pass but can't decide if we should go Green / Ordinary - was hoping you can help us with this?

Furthermore, can we reserve the seats online before we get to Japan or do we have to be in Japan to reserve the seats?

Happy to hear your suggestion on what other pass we can use to maximise cost saving same & time for our trip.

Day 1-2 in Kyoto (Nara Park & Arashiyama bamboo grove)
Day 3 - 9 in Osaka ( Universal Studio, Hiroshima/Miyajima, Tempozan Marketplace & Osaka Aquarium)
Day 10-11 in Fukuoka ( use JR Pass from Osaka to Fukuoka then do a day trip to Nagasaki)
Day 13 - Head to Nagoya (visit Studio Ghibli museum if possible)
Day 14 - Head to Tokyo
Day 15 - Day trip to Yokohoma from Tokyo
Day 16 - Day trip to Miyagi from Tokyo- we would like to visit the fox village (last day to use JR Pass?).
Day 17 - Rest Day - Shopping in Tokyo
Day 18 - Day trip to Fuji Q and Gotemba Premium Outlets (wondering what is the easiest way to get to these two destination from Tokyo?)
Day 19 - Hanaeda airport

Thank you.

Cindy