They're the only two I can think of but they both get a fair amount of students from Cedar Rapids because the city has grown into those districts over the years.That was the hardest part of trying to put this scenario together.
And if CRW ever gets back to their former selves, they'd be an interesting addition in the new 4A. Since Paul James went to Linn Mar, CRW had been awful. They really need some new blood at the top.