Well I'm doing the same as you looking for NZ horses tipped or rated to win by AUS websites or papers, but the kiwi punters don't agree, and they should know!! Perfect Lay or Trading opportunity. The Aussies are too busy studying the formguides for the first in AUS.
There are other universal Lay opportunities that I'm exploring. One, that I'm particularly interested in, is where you get a horse selected by at least 3 different rating systems to win. It starts favourite but it's price is above certain odds and it loses (false favourite). There are two or three of these each day.
Cheers RP