Have a look through the free and budget campsites part of the forum and see if you can see any in there. I posted a link, but the website has flagged it as a potential for spam...
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Yes I am an agent of Satan, but my duties are largely ceremonial.
Noel there are heaps of free camps on your proposed route.get either Camps Australia wide no 8 or use wieki camps they will show the sites and facilities. All WA stops are bitumised dump point and new drop toilets but if travelling from now to september be aware all free camps on your route will fill quickly from 2pm on .
Hi Noel, There are lots of free camps to be found on that route (too many to mention here), so with such a trip planned it might be a good idea to download WikiCamps to your smart phone, or preferably, your tablet. They have pretty much got it covered. Other than that the "Camps" book would be a handy reference. Good luck on the trip. Might see you along the way. Cheers, Bob