Hi there, and welcome to the forums

Have a read of the following Link
view_doc.php?doc_id=60&model_id=19This explains what you need for the early VE Series Clusters.
(Commonly referred to as the White backed clusters) which were made by Arrow.
Later Clusters (MY9.5 onwards) - (With the Black back colour) made by VDO are a little bit different.
The LCD Illumination LEDs are 90* Angled, and are pretty expensive to buy.
Everything else (In terms of the illumination LEDs) are the same.
If you get stuck, post up where you are stuck, or if there is a part that you need help with, and I will be more than happy to help out.
Cheers
Matti