I always thought a 1200 gallon propane delivery truck, you know the ones that are about 5 ft in diameter and 8 ft long, with a big diesel cab would make an awsome smoker.
Weber 26.75 OTG w/CI grates & SJ/WSM Mini
Home built 24"x72" reverse flow stick burner trailer with 18"x44" grill w/CI grates and upright SS gas oven/smoker.
Home built 48" fire pit with a 30"x30" Santa Maria style ranch grill.
Home built lump charcoal retort, iGrill & a bunch of other cooking toys.