Maybe Brad has a point? I used to put up make-shift shelters for my CG when I didn't have the gazebo (i.e. A lean tube made out of plywood). You also have that nice CG Kamado now, so I doubt the temp would be affected too much with the rain. Maybe just an umbrella of some sort mounted over the top would do? Kamados are pretty air tight, so you wouldn't need much to keep the rain from entering the exhaust.... you would probably have it barely cracked anyways to keep the temperature low. You're more of a handyman than I am (I've seen your wicked cool smoky joe homemade smokers
), so I'm sure you could think of something even better!