A friend runs a business call Allbikes, he is in Mickleham (about an hour north of Melb) he has a large workshop at home, he is almost finished building-up his DT2MX, he rides a big-bore WR250 (295) and roadraces a Yam R6.
His name is Will, he also offeres a pick-up & delivery service, and is quite happy to search the internet/ebay to find rare & cheap parts for his customers.
Call him on 0408 130 028, he has a daytime job Tue, Wed & Thurs, does his work in the evenings and Mon & Fri's so he is reasonably priced. He was the Mechanic for Yamaha City for many years before working from home.
Tell him Johnny O sent you :-)