Swapping out rear sheetmetal 1974 Swinger to 72

Find a 1973 to start with as they have the same rear end. The front clip will bolt right on and has the same bumper mounting points as well. The only hiccup is the side marker lights changed in 72.
Did the rear bumper in '73 still have the tail lites in it?? My puter research tells me nothing definite and the two cars to go see neither have the lights in bumper but they have titles (or so they say!).