It's a Chuckwagon cooker made in New Braunfels TX in the late 90's. I have one just like it except for the big cabinet on the end. It's made with 1/4" and is definitely heavy. I've never been able to find anything about them online. I remember their shop was right on Interstate 35 in the middle of town, but can't recall the name. Looks like a heck of a buy, but you will need a good plan or a few strong backs to get it in a trailer.
Hope that helps.
Randy
Just read the post above. The cooker with the cabinet could be 3/16 to cut down on the weight. Mine is made from 1/4"