French bizz jet

In 1957 Morane Saulnier showed a model of the MS.785, named “Comté
de Nice” at the Salon du Bourget. It was a four engined bizz jet for eight
pax and a crew of two, described as looking similar to a scaled down
Convair 880 Coronado. Is there anybody here, who has a photo of this model,
or even a drawing of this project ?
Other types I’m looking for are the MS.752, a jet powered derivative of the
MS.732 Alcyon and the attack derivative of the MS.760 Paris, maybe
designated as MS.761, but all I could find, are short descriptions in Cunys
“Les Avion Des Combat Francais” .