I'm not from Vic & the local club members who are on here would be able to guide you best.
My situation differed but I dealt with a Vic business when considering altering some standard rims & having them chromed.
I found them happy to share their 45+ years of knowledge to provide sound advice. They would do anything I wanted I guess but were genuinely interested in doing it right.
So, if you do need rim mods/advice on options, I can recommend Ajax Motor Wheels Pty Ltd above the others I contacted around the country.
(in my case they ended up finding newly manufactured chromed rims that were compliant & correctly matched to standard drums)
Auto Wheel Experts Modification, Repair, New, Chrome, Steel & Alloy.
Cnr Exley Drv & Ewar st, Moorabbin.
(03) 9555 7737
http://www.ajaxwheels.com.au/