I am setting up another mowing rig [ rig: in Idaho that means truck] that has a 7x9 flatbed. I have seen moving floors on large wood product trucks for dumping and was wondering if anybody has fabricated a simple design for dumping grass using a electric winch. If you would share any design ideas I would be most appreciative. Ease of cleaning and maintenance and the ability to move 1000 to 1500 lbs are important. Thanks Tom.