Kenebri to Pilliga is corrugated. We almost lost the microwave off the shelf. Not too bad a road though. The road from Pilliga to Burren Junstion is similar. Take it steady and it's fine. The road from Burren Junction to collarenabri is all sealed.
Dogs are defintely allowed at Pilliga and Burren Junction. They are both free camping although a donation is appreciated. Check my blog: http://memem20.blogspot.com.au/