We did the GCR in September 2016. We did some bush camps, one at Giles Breakaway, its a great camp site with a view sitting on top of some break aways, about 50km east of Laverton.
Also Gills Pinnacle was absolutely spectacular when we were there. Follow the track in to the big cleared flat area, maybe 1km in. Its about 40km west of the border. The view of Peterman Ranges is awesome.
Lasseters Cave was a good lunch stop over too.
Cheers Glen