Hi Steve
In May I did a run down through there heading to VIC to meet up with Deisel on the ST towing my camper trailer the route I took was
Warwick - Stanthorpe- Texas- Yetman-Warialda-Bingara- Narrabri-Boggabri-Mullaley-Coolah
On previous rides I have done the more Direct route from home to Coolmunda Texas Bingara Manilla Gunnedah Coolah
Both routes are reasonably good 2 lane roads
The first route has more twistiest and a little more picturesque the section of road from Boggabri to Mullaly was the best section of the ride a good surface through open country ( I may or may not of picked up some time on this section
)
If you would any more info just let me know
We are going with the bike and camper at this stage plan to over night Wednesday arrive Thursday