Philbock...
Welcome, my friend...always a pleasure to see another Illinoisan on the PB forum.
I am unable to offer specifics on dirt guys in northern Illinois. I will say, tho, that you will want to reach out to your county NRCS office and ask them. I worked the quad cities area a few years back, looking for my pond property, and the guys out there were extremely helpful and cooperative. Same thing in central Illinois. I have no experience with NRCS in northern Illinois, but it's worth a shot.