I'd be more able to come on a Saturday, but I don't know if I could make either day this weekend. I'll try.
Could someone inform me about parking in that area? Is it parking garages or what? As I am relatively new to this area, I've never been there.
As another option for a ride, we could ride the Illinois Prairie Path. Looking online at maps, it runs up a little past Elmhurst which seems pretty close to Chicago.
http://www.dupageco.org/bikeways/trailGuide.pdf