Thanks for your help.
I have the R35 from Milicast and have picked a couple of suitably posed horsemen from the Hat set. I've been doing more research and it seems that the cavalry got their equipment sent over from Australia for the 32 captured French horses they acquired, so the Light Horse figures should do very well. That said they look a pretty rag tag bunch from the photos I have seen. Unfortunately, most figure sets have the figures in uniform rather than on campaign.
I found this site as well http://forum.axishistory.com/viewtopic.php...695&start=0 and it seems that the R35s were just plain green. Hopefully, I'll be able to make a start on things over the Christmas break.