Osaka/Kagawa/Okayama/Kanazawa/Narita

We will fly into Osaka from Ishigaki on 11 October. We have 10 full days before flying out of Narita.
I am struggling to decide what is the most cost effective way to do the following itinerary.
Osaka - Takamatsu via the Akashi Kaikyo bridge.
Takamatsu - Okayama via the Seto-ohashi bridge.
Okayama - Kanazawa - Toyama.
Tateyama Kurobe Alpine Route (9800y ticket option).
Nagano - Narita.

7 day JR pass is not long enough.
If we purchase Kansai-Hokuriku area pass and a Tateyama Kurobe Apine ticket we still have to buy a ticket to Narita.

Is there a pass for the circuit Osaka-Okayama via Kagawa?
Any assistance welcomed.

The 7-day pass is not just too short, it is far too expensive for what is essentially a one-way trip from Takamatsu to Narita. Andyes, you will need to buy tickets for the different sections of the trip. Passes do not always save money - they are route dependent.

I have not done the Osaka to Takamatsu via the Akashi Kaikyo Bridge route, but a simple search suggests a bus would be the economical way.
The rail ticket Takamatsu to Toyama is pretty simple. And can be done for less than the price of the Kansai-Hokuriku area pass.
Same with Nagano to Narita - simple to just buy the rail ticket.