Best Regional pass option

Hello,

We are 5 adults travelling to Japan shortly. Itinerary as follows.

Osaka 31st Dec - 3rd Jan

Train Osaka to Kanazawa

Kanazawa 3rd - 5th Jan

Train Kanazawa to Nagano

Skiing 5th - 12th Jan

Train from Nagano to Tokyo

So, we have 3 train journeys over 10 days. I am just wondering if it would be better to get a 7 day Regional pass (specifically, the Osaka-Tokyo Hokuriku Pass) and then a single ticket from Nagano to Tokyo. Do you have any suggestions.
Much appreciated.
Cher