The 22" advertised as for Darts bolted up after elongating some bolt holes and the shroud went on fine after removing a little material on the bottom of the shroud.
Well worth it.
I own two of these and can tell you there is nothing wrong with it and will seal. I cannot attest to your statement but feels heavy not like aluminium.
Yes, that's the one I was talking about anyway.
Amazon.com: Gates 26391 Hose Reducer: Automotive
I think this is the one. It goes inside the the lower hose at the radiator.
No but the car was originally A/C and still used all the brackets and pulleys.
Also, have you thought about using a regular old solid fan with a spacer if needed?