Tokyo to snow wall tateyama

Is it possible to visit snow wall alpine route at tateyama from and back to Tokyo within one day? What is the suggestion?

Thanks.

Yes, it is a travel-intesive, expensive side trip, but it is possible. I suggest the following:

06:24 depart Tokyo by Nagano Shinkansen
08:03 arrive Nagano
08:30 depart Nagano Station by bus
10:15 arrive Ogizawa at the eastern end of the Alpen Route
10:30 trolley bus departs Ogizawa
... travel along the Alpen Route
11:55 arrive Murodo

See the snow wall and have lunch

14:15 depart Murodo
... travel along the Alpen Route
15:51 arrive Ogizawa
16:05 depart Ogizawa by bus
17:45 arrive Nagano
18:11 depart Nagano by shinkansen
19:56 arrive Tokyo

Timetable for the Alpen Route:
http://www.alpen-route.com/en/transportation/timetable-fares

Bus timetable for the Nagano-Ogizawa bus:
https://www.alpico.co.jp/access/express/nagano_omachi/

Train timetables:
http://www.hyperdia.com/

Is there an option for an overnight bus instead of taking shinkansen both ways?
Thank you.
Nani