Nice to meet you.
It is worried about the budget for trip.
I think that prices and the hotel bill of the Tokyo area are high. Please use the youth hostel if you do not have any problem. I think that you can hold down the lodging charges cheaply.
Please do a good trip.
TOKYO INTERNATIONAL HOSTEL
HI - Hostel Tokyo - Yoyogi YH Youth Hostel
http://sumidagawayh.com/page019.html