For what it's worth, if you can't find a plate. I've used a borrowed trolling sock.
What works almost as good but cheaper! ..... A pickle bucket with 1" inch holes cut in the bottom.
I tie the main line to the handle, than a secondary line (different color) from a hole drilled on the bottom lip, with a 1" split ring attached. When your ready to pick up and move, use the secondary line to invert the pail. Cheap but effective. Used this method on 15 to 23's!