1970-'80 1-barrel air cleaner housing for my '75 Dart.

WANTED: 1970-'80 1-barrel air cleaner housing for my '75 Dart. Need one with working snorkel door/actuator that holds vacuum, plain straight-down fitting for the hot air flex duct (not the side-entry one for rear-pointing snorkel), and without the 5/8" hose nipple sticking down from the main body for air injection.