how many day pass i should get?

hazegal

I will be arriving Kansai Airport at 10:25pm, 16 May 2015 and will be leaving Osaka at 11:35pm, 23 May 2015. (7 days 7 nights)

My itinerary is travelling around Osaka, Kyoto and Nara.

I planned to buy the JR KANSAI AREA PASS. but it only available maximum 4 days pass. Shall I get the following to cover my whole trip?

4 days pass x 1 pc
3 days pass x 1 pc

Irene

I will be in Japan from May 30th thru to July 10. The first 7 days I will be traveling everyday after which I will be staying at Mt Fuji for a week. June 12 I plan to travel to Hokkaido by train for 10 days. These 10 days I will be sightseeing. The rest of the trip I will travel to south island . Is there no flexi pass for 21 days?
Pls advice what pass is most suitable for my trip

Irene

Upon arrival at Narita Airport where do I exchange my voucher to ticket?