To get to Shepparton from there would take roughly 2hrs, or JUST under.
You need to be at DECA by 8am, THE LATEST. If you miss the official "safety talk" you will not be allowed to compete till an official briefs you, thus possibly missing some events.
I suggest you:
Meet at 5am
Depart at 5:30am SHARP.
This will give you time to have breakfast when you reach Shepparton.
WARNING: Service at both Mc Donnalds', in Shepparton, are VERY SLOW!!!