From my history working at a dealer, i'd go option 2 with the factory/alianz warranty. The warranty can only be added if the car is still under factory warranty and will be accepted at any VW dealer you go to.

As the others have said, source your own tint and accessories, you will save a fortune. Option 3 would be good if it were a lot cheaper, Yes, xennons are awesome, but for 2k more you get a younger car with the more powerful engine.