We were on the Cedarville about an hour after that diver had been recovered (evidently recoveries there are all too common).
The Cedarville is a 660' long freighter, snapped in two, relatively in the middle. It is rapidly being encrusted in zebra mussels, and has the traditional level of accompanying silt on absolutely everything (one wrong kick and it's a white out). Some of the penetrable spaces are quite tight, and too many divers have found their way in, without finding the way out.
Having said that, the areas we looked at (it was our only dive there, so this was merely scouting) looked quite doable. There are ways to penetrate from the break and bow, as well as the stern (don't have firsthand info about the stern, only did the bow and break). Overhanging cables are plentiful, and the angle of the ship is quite disorienting.