[Dave Samson]

Turk,
Just install a couple of vents in the tunnel wall between your knee and pedals, you'll get plenty of heat rushing in from the tranny and engine.
I live in a similar climate to you in Australia and all I can think about is trying to keep the heat out. My feet are cooking in summer, like right now. If you ever take a long trip with the soft top up, you'll be wishing you had a/c.