HI Lukas,
I am just back from my trip to Lisboa. To answer your questions about the graficcart... just search on Ebay... you can get them there for maybe 5 - 15 euro...
About your nav light... just tell me what you want i have it all running here and i assum i can also help you to give you the correct line to put in your fsini file.. Just tell me what you use and if you have any special program to run your lights like AST (overhead panel software) or is it just only in the FS itself?
gr.
Frans M
www.airbus320.nl