"does anyone know more ?"
Nothing more, than Jean Cuny could tell us. The MS.1010 is described as a VTOL aircraft with
a heart-shaped wing. That it actually was a derivative of the MS.1000, I couldn't find, it's just
the designation, that leads to this conclusion and the fact, that the MS.1020 seems to have
been derived from the MS.1000 directly, just using a less powerful engine. But ... designations
can lead into the wrong direction !
Just as a pure speculation, a twin-seat MS.1000, maybe the MS.1020 ? ;D
NOT TO BE TAKEN SERIOUSLY, BUT ANY ADDITIONAL INFORMATION HIGHLY APPRECIATED !
