After putting out a request at Alibaba, this company contacted me, because they had the items I was looking for.
After some questions I decide to buy some articels from this seller. They give me a quote and I had to pay by. Telegraphic Transfer. I don't like this method of payment but I had done it before and it went well then.
But as soon as I had done the transfer they had trouble getting the stuff together and then problems getting the stuff through customs and after that no contact again.