Walaikumusalam
The trip looks fine soo far,
Road Weather Conditions: Despite of few patches of streams Road is in very good condition and weather would be delightful.
Current Hotel Rates, Jeep Rent : These are very high currently as its a peak season time. you should keep in mind atleast 6K per room and same for Jeep .
You wont need a 4x4 to travel from Shogran to abbotabad/ Islamabad.
Waqar Naran Driver: 0342-5214140 he is driver owns a JDM vehicle and a very friendly person.
You can call him he will give you complete package including hotel fare. see if it helps
( You may use my reference Saad From Karachi) i have visited twice to these with and without family booked him always. but not forcing anyone, one should always check the rates himself for that im attaching a list of naran hotels and there numbers contact them for latest news and rates.
Regards
Saad