Mk2 Plastic window set..

[Curtis!]

http://www.pistonheads.com/sales/1761123.htm

Maybe worth something to someone building a track car.

 

[DannyR]

That seems quite expensive if I'm not wrong!

 

[edewer]

pretty sure thats about right for perspex panels, especially car specific ones

edited to say - a quick 2 mins on google turned up that plastics4performance do that kit for £275