Hi,
No problem with your ICAO ATPL.
If your ATPL is current, you could use JAR-FCL 1.016. This regulates the transfer from ICAO ATPL to JAR-FCL ATPL.
This link will take you to JAR-FCL 1.
Taking the exams in english should not be too difficult, as a great number of states do these in english.
Small ps: Data in the link in the previous msg seems to be outdated.
Here you will find the relevant JAR-FCL-states.
Good luck!
Redbar1