Dubbo to Port Stevens

That's the way I'd go. It's not a bad run, parts of it are very pretty, but watch for the coal trucks. I can't remember how long it took us but I'm guessing 4 to 5 hours.

Duncs

The Golden Highway--Dubbo to Branxton allow round 5 hours at least then onto Hexam accross the river an onto Port Stephens another 2 hours good roads all the way.