Forget gunshops. If anything decent came in it'd be hived off to their mates but then again abt 95%of shopfront staff know bugger all on the subject. There are specialist dealers and of course auction houses plus the many collectors and association members who deal between themselves.

A near "closed shop" here as it were but you have lots of research to do before buying. BTW there are at least three Oz based specialists on this forum. 500Nitro? has some entree into overseas buying, advice and importation.