Thanks for the feedback.
I went ahead and made a damper like yours and put it on. Might as well have the adjustability, I suppose.
Base coat of paint is on. The logo goes on next weekend along with building the coal basket and I'll be done. I won't have any thermometers in it until I deliver it to my buddy. He needs to decide if he is doing a digital thermometer or not and then what analog dial he wants based on that.
18.5" Weber Kettle / 32" Master Forge Charcoal Grill / Modded/Restored NB Bandera