Thanks for the input.
One thing that seems strange is that the seatpost size is 26.0mm...which seems a little out-of-sync with the 'mid-80's' and specs on the Mexican 800's I've read about?
Other weirdness: headtube graphics are in an "italic" font I haven't seen on any other Benotto photos.
Also, that the wheels are branded "Benotto- Made in Italy" instead of the "Ambrosio" spec...I wonder who really made them?