If you need any help let me know. I would be interested in building one. I have a CNC Plasma machine and could design it in my CAD program. Determine the exact size of the forebox , firebox inlet and exhaust to have it draw correctly. Also we would make it seal properly. If interested let me know.
Also I just saw a mule tuff. Guy here in Tucson just brought it home. Nice unit gave me some good ideas when I get the oppurtunity to build one. I like round but do not have a roller. I was looking at a different design little more boxy. Well anyway you know where I am at.
One