Alternative radiator fan shroud suggestions needed..

I built one "prefab." Get a local sheet metal/ furnace shop to bend you up a simple pan. Measure carefully what you want. Figure the circumferance of the fan, and have them give you a long strip of sheet appropriate width, say, 2 or 3" and long enough to "go round." Have them "tab" one side. Get the thing mounted, determine the fan center, and cut a hole with clearance. Run the tabbed material around, and pop rivet some of the tabs around. Of course it won't look stock. But they work