In the name of science: I actually did it: I ordered the groupset from taobao to the warehouse of my shipping agent. So far i paid 2599 yuan + 3% international card fee so 2677 yuan which equals around 340€. There's usually also a 1,8% fee from my credit card to convert the yuan to euro. So the total price should come out to 2725 yuan which is 345€.

I will let you know about the shipping price from my shipping agent to germany. I'm pretty optimistic that it will come out to less than 400€ including import taxes etc.

For comparison: From wheeltop website it's 599€ and from aliexpress it's at least 470€ without any taxes paid, so at least 500€ probably more.

If everything goes right this is a good deal. If it doesn't work out like i imagine it might have been a really stupid idea. Wish me luck.