Your plan is all ok if you ha e 4x4s. With cars u will have to skip deosai minimerg or you will have to hire jeeps. With cars you can do hunza,khunjerab and phandar.skardu can be done through jaglot skardu route and there you can visit shangrilla,kachura,cold desert ,mantokha waterfall,shigar valley,khaplu,on cars