If a bead roller is a possibility why not get this?
http://www.mittlerbros.com/index.php...eavy-duty.html
with this
http://www.mittlerbros.com/index.php...ad-roller.html
You will have a much more versatile set up as this will allow you to bead panels also. I ended up getting the 36 inch Mittler with the industrial motor and love it.