When I did my RPC Nav training out of YLIL we flew at the step levels for that route, ie under the 2500 step we flew 2500, under the 3500 we flew 3500. Altitude is your friend.
Make regular radio calls and write down any that you hear using the VFR corridor, your instructor will like that.
If you are in the corridor and hear someone call to notify they are entering it, make another call stating your position, alt and heading, just to let them know you are there, they may not have heard your call when you entered.
Melbourne Central will be listening and watching for any conflicts. They will call if they see any potential issues, which is why you want to make your radio calls, so they know who they are dealing with.
I've been in contact with them twice on Navs along that corridor, even as a lowly RPC holder.
Once they called us as they were concerned we weren't going to make the 2500 step on decent from 3500, thats how close they are watching - we made it.
"Fly" the route on google maps to get familiar with it, it helps identify things when you are up there. It relieves some of the task saturation so you can concentrate on maintaining altitude, visual lookout and the radio.