The Mercedes fans are too big for a 22" radiator. I'm sure one could be made to work but it would require some fabrication.

To those of you who have cut your core supports, you REALLY need to go back in there and add some support. Those are structural elements in the design of the car. Another name for them is upper tie bar. They tie the two sides of the car together.
These cars were made with floppy flexy chassis. Jack up one corner of the car by the unibody rail and open the door. You'll notice that it's different than when the car is on the ground.
You need every bit of support you can find in the chassis. Rough roads can flop the chassis around. A collision on a weakened chassis could make a repairable hit into one that totals the car.
Without that strong upper tie bar you essentially have nothing preventing the tops of the fenders from collapsing into the middle of the car.