1932 Ford Model B fan choices.

[37 Coupe]

My Model B engine has the later 4 blade fan now and may be okay to use but I would like to make sure with a new Brassworks radiator ordered. Not concerned with correctness exactly just sturdiness ,The original two blade fan if a good one or never used ? An aluminum one if ever made again or available or a better than what I have four blade fan? Which is less likely to come apart ? Few years ago I did use a new Model A aluminum on a '31 roadster but not after having to send back to get one to fit right on taper.