Itinerary recommended?

04.11.15-> Arrival at Narita Airport early morning.
04.11.15 11-1700-> Nissin Museum and Shinyokohama ramen museum
05.11.15-> Tokyo Disney Sea
06.11.15 -> Fish Market and Akihabara
07.11.15-> Ghibli Museum and shopping
08.11.15 -> Travel to Kyoto or shoud i go nagoya (nabana no sato)? -
09.11.15 -> if go nagoya first, then head towards kyoto
10.11.15-> Kyoto
11.11.15 -> Osaka
12.11.15-> Universal studio in Osaka
13.11.15 -> Travel to Nara deer park.. KIV travel back to t okyo
14.11.15-> Back tokyo sight seeing and shopping
15.11.15 - Last minute shopping and travel back to sgd

Hi all, my first trip to japan...
wanna seek advice is this itinerary ok? any advice to improve?
Should i go kyoto first or nabana no sato or how shoud i slot in nabano no sato?
Lastly, should i purchase a JR pass?

Thanks alot.