few companies you can ring in australia are national parts,nassons etc i know national sell to the public. and will be cheaper than bring a gasket set over from the states.they will have the australian delivered kit.there would be little diffrence in kits just small things.a metal shim gasket works a treat on the 7m's aslong as you make sure everything is machined.if you have no luck let me know and ill give you a few others that have the gasket sets.
mick