Hey mullet, long time no hear. Were you up in Perth with your car recently? Something about your plates rings a bell... I haven't seen many GTs on the road of late.
For the moulded quarter-light seals I would recommend someone like Highwood or Classic Alfa in the UK. Postage is quick and cheap and the parts are good. Near as I can make out Scott's do generic profiles by the metre and can point you to what suits your car. Having said that I will be onto them for a bonnet seal and weatherstrip, and I want to check out their sound deadener. I might have a work trip to Melbourne soon, can get to them then.