Thanks Ron and Holmburgers

So Ron If I wanted one of these suckers to coat 30 inches wide would Photographers Formulary build one and do you think I would have to mortgage my lab to do so.
Looks like a very very useful device. pretty expensive at the 8x10 size , $1000. bucks
Actually not kidding about the larger size, I would be interested in 30 inch and 20 inch.
or am I out of my mind?