Yeah, that's the Lowes knock off of the Lukenbach "barrel" BBQ.
The Lukenbach's run about $199 and they come with the side smoker box. Smoker box is located on the left side, exhaust chimney on the right back corner.
The Lukenbach's are constructed from oil field drill pipe, so the outer shell of the Lukenbachs are about 1/4" to 3/8" thick, as are the side plates.
Smart & Final used to carry them. I don't know if they still do or not.