Thank you everyone for your advice. I shall follow Stikybeke and others advice and take the Moruya route. SMS777 - I appreciate what you're saying but are needing to go at this time of year. I will be in an EFI and be extra vigilent on weather (as always) to avoid wandering into IFR conditions. That's a good suggestion to call somewhere for a local weather update before I plan to head inland from Moruya and over the mountains.
As long as I can find the GA parking area and this gate 3 y'all talk about I should be ok.
Thanks again everyone.