I had an all metal shroud from something in the 1960's. It wouldn't fit my radiator, was too long to clear anything on the engine and was totally wrong for the hoses. However, it had a nice round barrel and the fan from the 6.2 fit inside.
We cut the barrel off the old mount, made up a new sheet steel radiator face and fabbed up a way to bolt it to the old M715 radiator mount holes. We then had to cut another few inches off the barrel so it would clear all the pulleys.
It seems good turning the fan by hand. We will see what happens when it is making smoke and under a load.