True, they are not be reproduced. I have even the brackets and all the rest of the hardware. I am going to try and do a 1 off shroud. I bought a small metal brake as I need a 22 inch V8 size shroud but for a slant. I had a V8 radiator recored to a 3 core and had the shop add a slant 6 upper/lower nipple to about where it would have been if the factory had offered it.
I have at least 3 or 4 correct fans as well as a few with 6 blades. My wife says I am a car parts hoarder; naw, the parts just tend to accumulate!