from where you want to start trip.... ? 7 days from home to home..?
1-gilgit - naltar .. first day you may need to hire a jeep 4*4 (night stay there,, camp available on rent)
2-naltar to nagar - nagar khas - hoper (night stay at nagar khas or nagar)
3-nagar - hunza (visit hunza city) (Day 2 - 3 can swap as well first visit hunza than nagar)
4-Hunza to china border (enroute passu-atabad lake-sost)
5-shimshal valley if you can
6-astore rama meadows and rama lake ...
go back to home,,, or add deosai as well