Isn't that the one that uses the light bulb to do the cooking?
Heh. Anyway, for charcoal I've always gone cheap - just a metal tub and a grill and a lid, everything else is workable. And if I want to do a whole hog, or a few turkeys at once, etc. I have "The Box" - a Puerto Rican thing really called La Caja China -
https://www.lacajachina.com/
However, I have had the pleasure of helping others cook on custom made bbq/smoker rigs - if you have the budget and need, they can be NICE.