Replacing tailight on 981S

[FarzyB]

Hi there - having done some research and coming to the conclusion I need to have one of my taillights replaced, I wanted to ask:

1. whether anyone has bought parts from Teile.com, and were they genuine/reliable (unfortunately mine are the custom grey ones, so extra expensive)?

2. whether people think this is a job an average user can accomplish without a garage getting involved? I've heard this can be done witha few basic tools.

Any thoughts much appreciated!