I have purchased a Haban 440H sickle bar mower a good while ago, and just got around to putting it on my John Deere 430. I have both 540 rpm and 2000 rpm driveshaft with the mower, but realized I didn't get the other pulley for 2000 rpm set up. Could anyone help me out with pulley dimensions, or would anyone have a pulley I could buy? Any and all help is appreciated. Also is there anything else I need to do when converting it to 2000 rpm? Thanks