I have purchased some things from overseas, I've found some sellers do the shipping this direction for a "not bad" price. I'm not sure how that works going into Germany, sorry. Good luck!
Ours are all factory, yes, car has 100k on it. It's just a taillight and the LEDs are so much better, I think I'll wait for something to actually break. I do see some on eBay if you want a couple spares.