I live/hunt about 20 miles north of Champaign. The bucks have really started chasing within the past three days. Considering the limited information that you have regarding this buck's bedding/core area(s), I would set up in the stand where you saw the large tracks (if wind is favorable) and hope to catch him cruising does. I've been hunting every day and I can tell you without a doubt that it is really starting to heat up in Central Illinois! Good luck buddy and let us know when you stick him!