Here is my 18.5" 1983 WSM $50 CL find. So far, I've used it 3 times. Ribs, Chuck Roast & a 12 pound turkey. Still getting the hang of it. Did quite a few mods to it. If you want to see the mods, check out the link at the bottom.
22.5 WSM, 120 Gallon Offset, Performer, UDS, IQ-110, ET-732