Recreating MP Viscous Fan Kit

I am going to replace my 4 blade solid fan with a viscous fan. Since the MP performance kit is no longer available, I'm gonna try to do it myself. I know I can use the Derale fan clutch, but I need to find the correct 5 blade fan? I will also be buying a correct fan shroud. This is going on a 70 Duster 318 with Vintage Air.

Can anyone help point me to the correct fan? Thanks!

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