I do know a bit about camping around here.. well there is the KOA.. but that is.. well.. lame in my book.
There is a campground at the point of eagle ridge which I believe is free. It is a small campground that fills up quickly in the summer. There are also spots to camp at near the boat launch on eagle ridge. That area(Eagle Ridge) is also the best spot to fish that lake, also the deepest water.
If you take 140 west from here, there are lots of places to camp(Odessa creek, fourmile lake, lake of the woods, fish lake, etc).