You need lakes for a CL415, Canada has lost of them, we don't. I can't speak for NSW or Rocky valley near Falls Creek, but Lake Eildon would be a nightmare for them in my opinion, especially when we are talking about winds.
You have reasonably high terrain to the South and East plus the Eildon State Park Ridge in the middle plus the power lines (which have already claimed Four Lives and really are invisible) there is considerable turbulence, then there are the snags, and of course you would have to chase the water skiers off it.
You might be able to use the Lakes like Mokoan near Benalla and the Nagambi pondage. The Golbourn and Murray rivers aren't wide enough.