JR EAST PASS (Nagano, Niigata area):
https://www.japan-guide.com/e/e2361_nagano_niigata.html18000 yen, 5 days;
JR basic fare ticket and Shinkansen super-express ticket
to go from Toyama to Joetsumyoko:
about 5000 to 5500 yen (#);
Sum:
about 23000 to 23500 yen
to visit the three places, get to Shinano-Omachi
and get from Toyama back to Tokyo.
JR TOKYO Wide Pass:
https://www.japan-guide.com/e/e2361_06.html10180 yen, 3 days;
JR basic fare ticket and Shinkansen super-express ticket
to go from Toyama to Sakudaira:
about 9200 to 9700 yen (#);
Sum:
about 19400 to 19900 yen
to visit the three places, get to Shinano-Omachi
and get from Toyama back to Tokyo.
(#) The price of the Shinkansen surcharge
varies by seasons and days;
the basic fare is at the same price through the year.
> That was the plan but that was before I realised the Pass does't cover Toyama...
Hokuriku Shinkansen is operated
by two JR regional companies.
JR-West [West Japan Railway]
: Kanazawa -- Toyama -- Joetsumyoko.
JR-East [East Japan Railway]
: Joetsumyoko -- Nagano -- Tokyo.
JR EAST PASS (Nagano, Niigata area)
is valid for the whole JR-East part.
JR TOKYO Wide Pass
is not valid west beyond Sakudaira.