I used an old pretzel bucket with the bottom cut out as my hopper; fits perfectly! I had to fit a milk jug over the plates because mine didn't come with a cover, and crush was everywhere. The milk jug directs everything down into a standard 5g bucket.
My new 20 gallon brew pot.
http://www.amazon.com/Concord-Quart-Stainless-Steel-Cookware/dp/B0085ZNXZ6/ref=sr_1_3?s=kitchen&ie=UTF8&qid=1369866245&sr=1-3&keywords=Concord
A real deal at $99
Yeah, mine came without a cover as well, and that's what I did; cut up a milk jug to direct the grain. Angled it to accomodate for the adjustment in the front, and then clamp it down with the wing nuts on the back. Cut the bottom out of an old pretzel bucket to use as a hopper too. Fits...