Wow je nederlands is best goed! Volgens mij is het ook engels, so i'll anwser in english

I don't think it's John Cooper Edition, i'm trying to model the one i own myself, and that's just a 1300
Well the thickness of the glass might be thicker then you think, it's respectively 1 cm thick. Maybe i'll change the Nd because in reality it's a cheaper glass or plastic. That will
give it a different look
