I live in the USA but my offer to make a cable still stands. I have the know how and experience to pull it off easily. I'll even throw in my own IDE cable. You just have to ship me the adapter you want to use. I even have a Famicom cart slot I'll gladly donate to the cause. Came in one of those Super Joy Famiclones. I just need the Edge connector PCB to use for this. PM me if interested and a deal can be worked out. I can make the cable any length up to 1 foot or .3 meters. (which ever measurement you use in Germany.) Maybe more if I dig through my cables a bit more.
That's a really really nice offer, I highly appreciate it! Once I get hold of another import adapter, I will get in contact with you.