I don't think this caterpillar matches the image of Asura cervicalis on http://lepidoptera.butterflyhouse.com.au/lith/cervicalis.html If anything it looks more like Castulo sp - body covered with swellings from which the spines bristle. http://lepidoptera.butterflyhouse.com.au/lith/doubledayi.html
Yes, ('bunny ears') they are very impressive. We will have to remain on the lookout for an ID. One of the EntSocVic/Moth of Vic people has been doing LOTS of work collecting eggs and raising through. Some is published in Moths of Vic but I hope he plans to publish more of his findings elsewhere. We can wait and see.
filtering for larvae shots https://www.inaturalist.org/observations?q=larvae&taxon_id=324188 yes they look similar and have the blue bristle bunches but they are not Research Grade. Ones that are not marked as larva/larvae among general observations are not Research Grade either. In Research Grade ones https://www.inaturalist.org/observations/335529727 this one has 2 pairs of tufts https://www.inaturalist.org/observations/249737241 this one looks less bristly than above https://www.inaturalist.org/observations/196198611 https://www.inaturalist.org/observations/196117279 https://www.inaturalist.org/observations/194537831 https://www.inaturalist.org/observations/191937180 triple bristles ! https://www.inaturalist.org/observations/150771312 https://www.inaturalist.org/observations/148368793 https://www.inaturalist.org/observations/106160862 triple bristle again https://www.inaturalist.org/observations/100592161 triple again https://www.inaturalist.org/observations/91376455 https://www.inaturalist.org/observations/25447191 triple again quite why these did not come out in the filtered search I do not know. iNat searches have some weird problems.
Are these all this species? I am unsure. Maybe "Asura sp" is the solution.