I searched your local tri-county's newspaper's classified ads and found nothing current on the subject of fill dirt. My only suggestion to you is to contact a topsoil and fill dirt hauler in the area and ask them for a quote.
Here is one that seems to be in your area:
Hollow Trucking Company
Danis Amador
Bushel Center
6280 Rawsonville Road
Belleville, MI 48111
Fax: (734) 487-7079
Office: (734) 482-7263
You might find that they can deliver a "full load" of up to about ten cubic yards for under $300. I have recently had this done for me on an island in WA state and it was well worth the price. Much of the cost was labor, and they were able to precision-dump it and flatten the filled-in area.
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