audi A6 service book

[preA356]

i've been looking on ebay for an audi service book for an 07 plate A6 avant but there is 3 different front pages, which would be the correct one and does anyone know what the quality of them is like, i could get one from audi but i understand it says duplicate on them, i've nothing to hide so would buying from audi be a better option
comments please
thanks