The bin from ACE is the correct size. I ordered it from local ACE Hardware store, and paid less than the online price too. It was about $18, and no shipping since I picked it up at the local ACE Hardware store. I picked it up today, and its identical to the one for the DF-520.
Manf: DOVER PARKERSBURG
Keyword: BASKET BUSHEL GALV 1 BU
Thanks for the recommendation.