Been there many decades ago in 1978. Had a series 3 Land Rover then.Hi Middo,
Realise that you have your route planned out but if you anyone else is out in SW Qld and have even the slightest interest in Coopers Creek or the Thompson or Barcoo Rivers now is the time to see them. Where the Cooper cuts the Quilpie to Windorah Road just east of Windorah is magnificent, the creek is flowing wide and high. Plenty of camping spots.
I know you're not going that way but just something to think about.