Here is something to think about. I dont know where you are or your family situation but I am starting to build my own smoker on its own trailer and all and i talked to my sons high school shop teacher and he wants me to let them build it as a project for school, and all I have to do is furnish the materials that I have and pay for what I don't. The labor is free!
and he will build it to my plans or prints, (which I am looking for some now). I figure that is as good of a deal as any!