Alright so how about radiators?

So i currently have a slant six duster and a 440 waiting to go in. The 440 is from a motorhome so it has "steam holes" and all but my budget is stretching thin and this is where i forgot to dig deep.

The dirt cheapest radiator i can find on summit is a 22" spectra OEM replacement. This is suspect for a 440. Does anyone have an opinion on this radiator with an electric fan? Not racing or using air conditioning, just general road driving.