Skygod,
You can complete the written part 135 or 125 exams with Flight Safety Le Bourget Paris. Cost is about 140 euro's , but you cannot complete your check ride outside the usa at the moment.
Ba Do some very good deals on web fares to the USA, so my advice is to book ahead and complete everything in one go over in the USA. Upon successful completion you are awarded a temporary airmen certificate, It takes up to 120 days for the permanent one to come through.
Good luck and fly safe
WW