Various eSUN 3mm 3D printing filament is on sale at Kingdom Printing. Unfortunately (for me) 1.75mm variants are not on sale.
eSUN is generally regarded as good quality. At least better than your average no-name Chinese imports.
Shipping to Sydney metro via courier starts from $8.90.
- eSUN ABS+ Pro 3D Printer Filament 1kg - 3mm $19.12
$23.90 - eSUN Original ABS 3D Printer Filament 1kg - 3mm $19.12
$23.90 - eSUN PLA+ Pro 3D Printer Filament 1kg - 3mm $19.92
$24.90 - eSUN Original PLA 3D Printer Filament 1kg - 3mm $19.12
$23.90 - eSUN Colour Changing by Temp 3D Printer Filament 0.5kg - 3mm $22.32
$27.90 - eSUN Colour Changing by Light 3D Printer Filament 0.5kg - 3mm $22.32
$27.90 - eSUN Luminous ABS 3D Printer Filament 1kg - 3mm $22.98
$28.72 - eSUN Luminous PLA 3D Printer Filament 1kg - 3mm $24.71
$30.89 - eSUN Transparent Glass 3D Printer Filament 1kg - 3mm $22.08
$27.60
P.S. Not sure why the tagging system decides to change 'ABS' to 'Weight Loss'.
Good price for good filament, like you I am after 1.75mm :(