Wanted Two 9" Cake Tin Air Cleaners

Hi guys,
I'm in the process of building a 2 x 1BBL set up for out 1964 Dart GT, slant six. I am hoping the end result will look like the one in the picture, the problem is I cannot find these air cleaners in Australia. I need two nine-inch 'cake tin' air cleaners and bases as used on early slant six. Can anybody help?