Hi,
I've flown that route many times.
The easiest is to do a CTA Departure out of YSBK, if 07/25 is in operation you'll be vectored for a short time, told to climb to 1500 ad track Sutherland-Wollongong. As soon as you pop into that 1500ft step they'll cease your CTA services and you go on your way OCTA.
If 07/25 isn't in use you'll have no issues getting a higher level, probably not 6500' though as that is non standard, as its an easterly track you'll have to go 5500 or 7500, go 5500 as that puts you out of CTA before YWOL so you can organise your own descent etc.
If you decide to go the Victor 1 option, don't track all the way to LRF. Go YSBK-PRT-HBG-Victor 1 its quicker and more scenic as you get the Parra River, Homebush etc. You'll get this as long as 16 isn't busy at the time.
Have fun at Aviex!