Messerschmitt Bf-110

I brought an Italeri Messerschmitt Bf-110G-4/R-3 Nachtjäger (1/72)… but… in the box art they show me a kind of cockpit… but in the kit they gave me a different cockpit… I think it’s the C/D series cockpit… ¿what can I do?.. i have also an Spanish magazine: “El mundo de la aviación”… in a photo I can see a Bf-110 it’s code is XX+XR… it is very difficult to see the two first letters/numbers… but it seems to have the early cockpit for the C/D series… well… in the painting guide of the kit y see one option… is a plane with G)+XR code… ¿is it the same plane?.. if is… the early cockpit is the right one… if not ¿what can I do?..