Are you certain? The buyers guide in UAC's site lists it as being for a 73-74 Valiant, Duster, and Dart. Unfortunately they don't have a pic, nor do they list dimensions. That makes it impossible to determine if it's the right part, or if it could be made to work at all.
I found some tube and fin OE type replacements on Ebay. From the looks of them it would be pretty easy to modify any suitable size universal condenser to fit in place of the stock one. The universal units have fittings directly on the end tanks, and ribs on each side with holes to screw or rivet any mounts you want to them. All you would have to do is fabricate the brackets and perhaps one hard line from the looks of it. Not difficult at all, really.