Just out of interest...I bought the F3 universal mirrors from Austreetfighters
Austreetfighter F3 Mirrors
They look great, but are small and the view is worse than standard. I've learn't to live with them though.
They also weigh about a quarter what the stock ones weigh, and consequently vibrate pretty badly too. Stock mirrors are amazingly heavy!
As seems usual in OZ we get raped as far as cost goes. These mirrors are less than 20 pounds I think in the UK.
All in all, not recommended if you have to have mirrors that work well. If you don't like the extra width involved with bar-end mirrors and consider mirrors mostly a PITA lawful requirement, worth considering.