Red Rear Lights

Does anyone know where I can get hold of a set of Red rear lights for a 1983 MK1? (larger size light)

I know you can spray the existing lights with Red tint spray, but I saw a set of new Red crystal type rear lights on the back of a Black MK1 at ED38 and they looked really nice.

Dean.

http://justmatz.co.uk/products_offers_01.html

HTH