Hi Re@per,
I am just going through the process of up grading mine. You will need to get 300tdi headlights and indicators (obviousley) but also you need the 2 bits of trim from underneath the head lamp itself from a 300tdi and a front grill. I have been told that they are called 'hockey sticks' but also seen them mentioned headlamp trim etc etc. There is a bit of modifying to do to your front end also. If you search on this site for the up-grade thread there is a senior member called 'YELLA DISCO' who has the templates and instructions you will need to do the swap over at a reasonable price!