Interesting update on "crappy" repro fan shrouds

I purchased this fan shroud a while ago, and am in the process of adding electric fans to the stock fan shroud. When I first took the fan shroud off, I noticed it has warped also, as the opening measureed 19" top to bottom, and 21" side to side. Well, I am not sure which generation this is, but I am going to fix the problem with adding a round sheetmetal end cap that is 19-7/8" od into the shroud, and use some small black rivets to hold it in place. This will keep it round, and also allow me a spot to place some fans on the metal endcap. I plan on using (3) 7" fans, and this will allow enough room for my electric water pump, as I only have 3" from there to the radiator. So, I will see how this end cap helps to maintain the shape of the fan shroud.....