Newbie here looking for advice on this smoker?

Hey guys, I'm new to the forum and looking to move up from a Big Green Egg to a larger traditional styled 60' smoker. It will be used primarily in my business for customer/employee appreciation functions as well as hunting camp duties. My needs are to be able to cook up to 20 butts at a time along with an occasional brisket and baby backs. I came across this on Craigslist. Anyone have any experience with them? There doesn't seem to be a company name.

Thanks!

http://cfl.craigslist.org/for/5021285780.html

They also have a youtube video:

http://www.youtube.com/watch?v=CuuJGNbz9qo