This is just a idea. When I did my early A I got a 1980 Dodge Aspen radiator, fan shroud and clutch fan, the last 2 were from wrecking yard find.
The radiator I bought new. They have thin long tanks that give extra room.
You will have to relocate the mounts. I just extended from existing holes with 4 brackets.
Worked very well in the Nevada summer 100+ heat.