I think this livery suits the MD11 very well, it was one of the most characteristic planes Alitalia flew and there aren’t planes operated by Alitalia Cargo in this simulator.
Here there is a wiki about md 11 operators, comprehending Alitalia with 5 cargo versions.
Lenght: 61,21 m
Wingspan: 51,66 m
Wing area: 338,9 m²
Empty weight: 130 165 kg
Max weight at takeoff: 285 990 kg
Maximum payload: 84,314 kg (194,700 lb)
Max speed: 0,95 Mach
Cruise speed: 0,89 Mach
Hope there’s all you need. Bye!