I'm just reading the February/March 1993 issue of Mopar Muscle. Galen Govier has a story there on Canadian built Mopars.
" One model unique to the Windsor plant in 1971 was the Swinger 340, only availible in Canada and in limited numbers. Of the total production, only 5 are known to exist."
This was some years ago but they sure are rare! Well worth restoring.