I see that people have suggested you look at CTCL schools. You have a number of them right in your backyard that you could easily tour to see if any are a fit: Beloit, Knox, Lawrence, Kalamazoo. My D15 applied to all of them and received enough merit aid to make all of them less expensive than our in-state flagships (UCs), so a little more than half of your $45-50K budget.