need feedback on clutch vs flex fan and shroud

So,

A bit pissed after yesterday while putting the car back in my garage, my electric fans do not come on.

Looking for ideas on a non electric based setup for my dart.

Should i source flex or clutch fan?

Here are the details.
1969 Dart GT
1979 LA360
Champion EC2374 22" radiator.

The part number I found for a shroud is:
1. 2998325 Shroud is for a small block V8 A body with a 22" core and A/C, my car is non A/c not that it probably matters.



I would appreciate feedback and possible parts.

Thanks,
Bruce