Just found this - looks to have been a Pitts Model 12 - with the M14P engine. I did not know the pilot.
http://www.dailytelegraph.com.au/news/nsw/hunter-valley-plane-crash-pilot-who-died-in-fiery-crash-identified-as-businessman-gerard-beiboer/story-fni0cx12-1227434687599
http://www.theherald.com.au/story/3198327/pilot-killed-after-plane-plunges-into-bushland/
My thoughts go out to his family and friends during this tragic and awful time.