Fradu - is the 800 cad a "real" picture or generated? it looks great either way.
XZ439 looks like the 801 birds except the gray is lighter, the radome is the same gray as the fuselage, in place of the winged trident on the fin and under the canopy on the fuselage are two foot black and white test squares and the rudder is dark gray (in honor of her sister that crashed).