Tetenal chemistry is also available at Macodirect.de
E-6 three-bath kit (two sizes, 1 litre and 5 litres). Uses blix;
C-41 "Rapid kit" (two sizes, 1 litre and 5 litres). Uses blix;
RA-4 kit, 5 litres.
There's also a low formaline stabilizer, suitable for E-6 and C-41.
Depending on availability, the same chemistry can be ordered in Italy at Western Photo:
Shipping from Germany to Italy and within Italy was carried normally, did not involve any "hazardous material" complication.
PS for those interested, Western Photo also has the Ilfochrome paper developer: