Luca, VHT also do a wrinkle paint in a rattle can!, this is what i used on my vauxhall nova! it gave an awsome finish, and was easy to do, i used an oven to get extra wrinkles,
not sure if the pic will show it up that well;



one can done the cam and belt cover, top hat and dizzy body, with some more left over, i bought it via Frosts.