fiat ducato herrald castile

lord lez

hi i own a fiat ducato herald castile and it has tinted windows allround ,the two windows in the over cab bed space are fixed non opening and are fitted too the sides and i am looking for replacements exactly the same (they have hairline fractures through age) does any one know where i can obtain them or have them made ?? oh by the way it is an old L reg so it is now comming up for 22 years old parts are getting scarce sadly to say  but as an engineer i am trying to keep it up together