Pass advice please

Hi
My family of 4 (3 adults and 1 eight year old) will be travelling to Japan on 29 October till 11 November 2018.

I am a little confused as to what pass to choose and which will be the most financially efficient so any help would be appreciated.

We arrive in Tokyo on 29 October around 6:30pm and will be staying at nishi - shinjuku for 6 nights.
We leave for kyoto on 4 October and will staying at Kyoto-shi for 3 nights.
Then leave for Osaka on 7 November for 4 nights staying at Kita-Ku and departing back to Tokyo on 11 November.

If I just count the days from Kyoto to our return to Tokyo at the end its 8 days so would I need the 14 days pass? Is there a better way for us to use it since its only 1 day over using the 7 day pass?

And also, can we use this pass for our travel from where we are staying in Tokyo to Disney land? And for our local travel around the main cities?

Thank you
Kirstie