Gidday Caz,
Good to see you found the site & Pete's ride
It's going to be great riding with you guys again & I'm sure you'll love riding around this area. The most direct way to get there is head through the Black Spur towards Eildon ie via Buxton, Taggerty, Thornton. The Eildon-Jamieson Road is is about 3km's before you get to Eildon, off the Goulburn Valley Hwy, on the RHS. Take this turnoff & go down this road for about 20kms & 15 Mile Road is on the RHS too. It's not that far from the Big River area.
The closest accommodation would be at Eildon, various caravan parks, motel at the Golden Trout Hotel as well as a motel across the road from the pub.
Hope this makes sense, if not, just phone Pete & he'll explain...
Cheers...Marls