I am going Tokyo by end of April, the following is my proposed itinerary :
28/4 arrive Narita
29/4 Nippori-Aomori
30/4 Aomori - Hirosaki
1/5 Amori- Hakodate
2/5 Hakodate - Hachinohe
3/5 Hachinohe - Koshigaya-Laketown - Niigata
4/5 Niigata
5/5 Niigata-Kanaguchi-Narita
Can a JR Pass for 7 days cover the whole trip?
As the trip falls in the Golden week, do you think reservation till I arrive Tokyo on 28/4 will be too late?
After I reserve the seat, can I change to earlier train in case I can reach the station earlier?
Any comment or advise on the above itinerary?