For compositions of the range itself the fields north and south of the range provide the best views. Most roads are sealed, but good dirt roads exist as well - all navigable by 2wd cars. I recommend exploring around these ranges to get the best composition that suits the time of year.
I have climbed one of the peaks and the views are indeed spectacular. However, you have to be relatively fit and mobile, especially if you are carrying a heavy pack of camera gear (I've yet to do this, but it is in my list of places to shoot from). Most peaks with hiking trails will have a place to park your car at the foot of the hill / mountain.
There is faint Telstra mobile coverage over most parts of the reserve. There is no camping allowed in the national park.
