[MOTORHEAD]

I'll echo what Sailfish said. I'm mid- fl, in Sarasota, and driving a Cobra in the heat and humidity is like driving an oven !!! The traffic and stoplites exacerbate the problem. And in this area there are very few Cobra-worthy roads. My Kirkham, being aluminum, transfers the engine, exhaust, and ambient heat thruout the entire body ! Even short runs will soak your shirt!
I worked for a Backdraft dealer some years ago, and we installed a few a/c (vintage air) systems, but without top and side curtains, you wouldn't get much advantage, but it did help when stopped at a light. And I can tell you that a fiberglass body will provide more heat insulation than aluminum! But where you are you must have cooler seasons ? Most Cobra owners live in areas where their cars are garaged for at least one season (winter), due to weather. What's your weather like in fall, winter, spring ?