Apparently there is a bloke out nerang way call paul beedie?? who is a 2 stroke guru.
Having said that there is something to be said about being able to rebuild the motor under your own steam.
I'm in brisbane on the northside so if you would like a hand or someone to watch and have a beer while you rebuilding it, give me a yell.
I got one myself and would be very keen to give it a crack with you, maybe we can both learn somthing.