Unfortunately you're quite a ways behind schedule Boiler, but if you can find some time on the weekend to drive out to either of these places you might be able to get a plan together before the regular season begins.
The only place I know of on the Fox that you can get public access is the public ramp just south of Orchard rd. Another member on this site FeelinFowl hunts or there quite a bit so shoot him a pm as he might be able to offer a few more pointers.
DesPlaines: Has just a few blinds that I think you can walk to, but they do have drawings for the blinds each YEAR, and you are about a month late on that. However, most of the "blind owners" rarely if ever hunt their blinds over the course of the season. You should not have problems getting into one of the blinds if you go out there during the week, or any other weekend outside of opening weekend and Thanksgiving weekend.
That's about as general as I can get.
Best of luck!