Thanks for the suggestions it is white needle, also the paint is not too bad but it has faded and there are a few rust bubbles along the seams down the sides and some small bubbles starting to show on the roof. Will try rubbing a patch back inside the tail gate and see what that shows. How can you tell if it is GTS loom?
Even if by chance it is not genuine the work will still be done as everyone over here that has seen it says they haven't seen one this tidy in many years so it may as well be finished off to look the part. (also it wont be sold for a long time)