Here are some references that I used which include photographs for comparison: http://www.arachne.org.au/01_cms/details.asp?ID=2635 https://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:afd.taxon:1b681ff2-c331-461c-906b-5a853694efe1 https://www.wildsouthaustralia.info/Spiders/Araneomorph/Sparassidae/Isopedella-cerussata/i-bxCSBsG/ http://www.bowerbird.org.au/observations/66702
Isopedella victorialis is similar and could potentially be another possibility, however it seems to have more white patches on its legs and the pattern and colouring seems a little different. Also, it seems to be concentrated in Victoria, with some in southern NSW too. http://www.arachne.org.au/01_cms/details.asp?ID=2508 https://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:afd.taxon:a142328a-c093-4f9e-89e8-db6e5f5d0736