Waalaikum Assalam
please read the post from ranasherdil, having some very useful links. then you can also read the Hotel Reviews thread. in my experience if you reach at Naran before noon and Friday, you can get the hotel room at a very reasonable prices.
you should also visit Shogran, Sri, Paye and Sharan as well in the way to Naran if you are visiting the Naran first time.