Cooling Fan replacement

Hey Guys!

i have a 74'' Duster with a 318LA

my Flexfan is starting to fail because of age, the blades are starting to disintegrate after 48 years!

im looking for a replacement, doesnt have to be anything fancy

numbers i found on the fan are: 3462139 and below that 24654 and above the chrysler logo it says B73

any suggestions?