What can one say, finally one has turned up. one way to prove it was born and bred in the area rather than some escapee would be by stable isotope sampling. For that, samples would be required from the animal. Based on the Cuppacumbalong records it seems possible and most likely to be a local resident, a sentiment I am happy to support!
Hi @JoePettroni Looks like he is missing a portion of his tail? There is a surprising concentration of records of Rosenberg's Goannas (aka Heath Monitors) near that location. We can recognise individuals by their left face and right face if the photo is sharp enough. More information here https://www.npaact.org.au/goanna-project