I ended up making an order with Phobatec for 400 rolls of film.
They are giving me PanF+ in 120 for 2.20 euros a roll which is quite good and they took my greek tax registration details with no further paperwork so I escape the german tax.
The shipping is 25 euros and the bank wants 15 euros for the money transfer which is also pretty good.
It all sounds great and I will soon have PanF+ to last me for some time!