As requested, here are the first of some excellent shopping for those desired items by 'crafty' people:

Best wool – Morris and Son, Level 1,  234 Collins St, Melbourne.
The most amazing range of Buttons, trims and accessories – Australian Button Company, 375 George St, Fitzroy.

Exclusive top quality dressmaking fabrics ranging from cottons to evening wear, including a great range of knits  - The Cloth Shop, 47 Lower Heidelberg Rd, Ivanhoe.

Japanese textiles and craft – The Kimono Shop, Level 2, Nicholas Building, 37 Swanston St, Melbourne.
Vintage haberdashery – L’uccello, level 22, Nicholas Building, 37 Swanston St Melbourne.