''The other passes can also be bought for use from other Tobu railway stations in the Kanto region.''

Can I buy the Marugoto Nikko Kinugawa free at Shinjuku or Tobu Ikebukoru station or I have to buy it at Tobu Asakusa station.

Thank you

You should be able to buy it at the "Tobu Travel" travel agencies at Shinjuku and Ikebukuro Stations.

The Ikebukuro store is inside Tobu Ikebukuro Station.

http://www.tobutravel.co.jp/branch/shinjyuku#map
平日10:00〜19:00 （休業日 土日祝、12/30-1/3）

Can I buy the pass on November 03(holiday) or November07 (Saturday)?

November04-06 I stay at Matsumoto and Takayama.

No, surprisingly the store is only open on weekdays. It is closed on weekends and national holidays.

I stay at Minami-senju. Can I buy it at Kita-senju station on Sunday morning before departure?

Should I buy the pass or not?

I have JR East 3 days. If I don't buy the pass but I go to Nikko by JR express at Shinjuku . I have plan to Honke Bankyu Ryokan本家伴久萬久旅館.

Unlike the cheaper passes for foreigners, the Marugoto passes can be bought at all stations along the Tobu Isesaki Line. The closer to Nikko, the cheaper the cost. You can also buy it at Kita-Senju Station, but the cost is still the same as when you buy it at Asakusa, namely 5980 yen (5470 yen in winter).

Should I buy the pass or not? I have JR East 3 days.

If you have a JR East Pass, it is cheaper to travel to Nikko by JR and not use a Tobu free pass.

Then you should not buy a Tobu free pass!

Do you know about the cost from Nikko To Honke Bankyu Ryokan at Yunishigawa onsen station.