Thanks for the chilies on the web tip. They have a bit pricey postage, to Berlin almost 10 euros... But let's try them, because they have all the chiles needed for the chile paste. These Berlin shops mostly have the basic chiles. Once there was a chili hamburger place in Neukölln selling home grown chiles with different variety and they went bankrupt in a year. It seems germans don't like spicy food that much.