Mostly Brown Tactile/Blue Clicky switch options. Q5 has Red switch option still available.
Mwave no longer charges surcharge according to comment below.
Mwave VIP membership is minimum $69 for 6 months. You are better off just paying shipping once off IMO.
Thanks to another user who mentioned the Mwave sale first: https://www.ozbargain.com.au/comment/13469129/redir
Reference prices:
Q4 Fully Assembled is $229 + Shipping (my estimate $13), Q6 Knob Fully Assembled is $299 + Shipping from Keychron AU.
Switchkeys AU only sells the Barebones versions (No switches and no keycaps included) so their prices cannot be used as reference.
All are Fully Assembled Q series keyboards which are Fully aluminum case, Gasket mounted plate, South facing Hotswap PCB with Per key RGB, VIA/QMK compatible and in this case Fully Assembled with Switches and Keycaps, Straight cable and tools are included for a fully functioning keyboard out of the box.
NO wireless.
In order of keyboard layout size and price.
Q4 $149 + Shipping. (60% NO arrow keys, NO knob)
Black (Brown switch): https://www.mwave.com.au/product/keychron-q4-hotswappable-rgb-compact-mechanical-keyboard-gateron-g-pro-brown-ac55510 Out of stock
Black (Blue switch): https://www.mwave.com.au/product/keychron-q4-hotswappable-rgb-compact-mechanical-keyboard-gateron-g-pro-blue-ac55509 Out of stock
Q2 Knob $169 + Shipping. (65% compact size, NO function keys)
Grey (Blue switch): https://www.mwave.com.au/product/keychron-q2-knob-hotswappable-qmk-rgb-mechanical-keyboard-gateron-g-pro-blue-ac58765 Out of stock
Black (Blue switch): https://www.mwave.com.au/product/keychron-q2-knob-hotswappable-qmk-rgb-mechanical-keyboard-gateron-g-pro-blue-ac58762 Out of stock
Q7 $159 + Shipping.
Black (Blue switch): https://www.mwave.com.au/product/keychron-q7-hotswappable-carbon-rgb-mechanical-keyboard-gateron-g-pro-blue-ac58787 Out of stock
Grey (Blue switch): https://www.mwave.com.au/product/keychron-q7-hotswappable-silver-rgb-mechanical-keyboard-gateron-g-pro-blue-ac58790 Out of stock
Q3 Knob $179 + Shipping. (Tenkeyless, 80% of a full size keyboard but NO numpad)
Grey (Brown switch): https://www.mwave.com.au/product/keychron-q3-knob-hotswappable-tkl-rgb-mechanical-keyboard-gateron-g-pro-brown-ac58772 Out of stock
Grey (Blue switch): https://www.mwave.com.au/product/keychron-q3-knob-hotswappable-tkl-rgb-mechanical-keyboard-gateron-g-pro-blue-ac58771 Out of stock
White (Blue switch): https://www.mwave.com.au/product/keychron-q3-knob-hotswappable-tkl-rgb-mechanical-keyboard-gateron-g-pro-blue-ac58768 Out of stock
Q5 Knob $189 + Shipping. (Compact Full size, 96% of a full keyboard, misses out on some navigation keys)
Black (Red switch): https://www.mwave.com.au/product/keychron-q5-knob-hotswappable-rgb-mechanical-keyboard-gateron-g-pro-red-ac58773 Out of stock
Grey (Red switch): https://www.mwave.com.au/product/keychron-q5-knob-hotswappable-rgb-mechanical-keyboard-gateron-g-pro-red-ac58776 Out of stock
Black (Brown switch): https://www.mwave.com.au/product/keychron-q5-knob-hotswappable-rgb-mechanical-keyboard-gateron-g-pro-brown-ac58775 Out of stock
Grey (Brown switch): https://www.mwave.com.au/product/keychron-q5-knob-hotswappable-rgb-mechanical-keyboard-gateron-g-pro-brown-ac58778 Out of stock
Black (Blue switch): https://www.mwave.com.au/product/keychron-q5-knob-hotswappable-rgb-mechanical-keyboard-gateron-g-pro-blue-ac58774 Out of stock
Grey (Blue switch): https://www.mwave.com.au/product/keychron-q5-knob-hotswappable-rgb-mechanical-keyboard-gateron-g-pro-blue-ac58777 Out of stock
Q6 Knob $189 + Shipping. (Regular Full size keyboard)
Grey (Brown switch): https://www.mwave.com.au/product/keychron-q6-knob-hotswappable-rgb-mechanical-keyboard-gateron-g-pro-brown-ac58785 Out of stock
Grey (Blue switch): https://www.mwave.com.au/product/keychron-q6-knob-hotswappable-rgb-mechanical-keyboard-gateron-g-pro-blue-ac58784 Out of stock
I can't seem to get a shipping cost estimate without creating an account. Not sure if Mods can help with this, e.g. shipping cost to Sydney etc.