I am going the cheap, cheap route for now on corn cleaning. I put small screen onto some luan and clamped that to the gravity wagon. Fill a galvanized bucket and use that to fill a tub in the house. It takes me about a half an hour to do a couple of days supply.
It all starts here.
Spin the wheel, with the bucket under the gate. Fill it up and burn it. The 6039 doesnt seem to care about the big stuff, or at least my corn is clean enough that it just doesnt matter.