After looking a bit deeper into the question of the availability of these photochemicals there seems to be no problem at all within the EU commonmarket. There are, also in Germany, suppliers willing to export.
At the moment I am making a list of european suppliers. Comparing prices is, as always, important. There seem to be huge differences between countries. Knowing more of the matter now, it only seems that german law is so strict, thanks Agx. Just the whims of a supplier.
Anyway it is very interesting to dig into this matter a bit.