Steve, have you tried O'Brien's? One of our member's had his replaced by them. Apparently they've got windscreens for our cars in stock.
By the way, welcome to the club.
I guess this might be for a road worthy, yea try O'briens i used a guy called windscreens on the run over on my side of town (nth-west) $250.
I'm personally see replacing windscreens for RWC is fairly crap practice just to make money, most of the time the windscreen is fine. I was told i needed mine replaced because it had "small scratchs/chips" when they used the UV light on it, now i know that it only needs to be replaced if it hinders the drivers vision.
You Better of calling around everybody you think of and ask for galant 8th get windsreen, last week i paid 410 for mine with obrian as it had to sent from Sydney to Melbourne plus fitting but i just wanted to register the car so im sure if you patient you can get a cheaper deal