The Militant is a very much bigger truck so is not one of them. It could be a Matador but it is a pretty poor picture with the pixles running together so not enough detail to confirm. The steering wheel looks too far raked back, can't see gear stick where it should be and there is a 2nd shaft next to the steering column. Mudguards also look wrong. The chassis looks like it has been flitched.
Regarding the cab, Hastings Deering did market the Matador with their cab but generally there was no such thing as a standard or common cab for the Matador in Australia.