This is the original radiator in the โ€˜71 Vandura and I want to replace it. Or have it rebuilt. Is that one row of tubes and tanks that can accommodate two rows? My inclination is to have the radiator rebuilt with a new core and a second row of tubes. There are aluminum radiators available for likely a bit less money. What are your thoughts on aluminum versus copper? What are your thoughts on adding an additional row of cooling tubes. Eventually, I want to add an air conditioner.