Best Option (Itinerary x JRPass)

Hi Daniel-San!
Hope this message finds you well. :)
I'm going to Japan (arrival - April, 18th at 20:05 at NRT airport) and (departure - April, 28th at 21:35 from NRT airport as well). The main idea is to do (not necessarily in this order):
Tokyo (also see Mt. Fuji - day trip), Takayama, Kyoto, Nara, Osaka and Kanazawa.
Do you suggest an order for this itinerary? Considering holidays, etc.
Also I have a doubt regarding the transportation in Japan.. it's so complicated.. :(
I'm going to stay in the country for 10 days and not 7 days (the minimum JRPass package), I don't know if I buy, ticket by ticket, or a 7 day regional pass Osaka-Tokio Hokuriku Pass (that is cheaper than the 7 day Ordinary Pass) or the Ordinary that covers more places.
Also I'm not sure if I buy one of these tickets, I don't have to buy also a SUICA or PASMO card to get around in Tokyo.
Since I'll be undercovered for 3 days (if I buy one of these 2 options of JRPasses). What would be your suggestion for me?
I apologize any typos and grammar mistakes, since English is not my first language, also I don't know if I made myself clear.
Thank you in advance.
Fafis