I would save your money and do the course at a reputable local flying school. You will have more chance of being employed on completion of the course and will probably get to know many of the students you will be instructing. The majority of students who completed their FI at my local flying club subsequently go on to work for them due to the high instructor turnover.
I can only presume that your chances of getting a job with one of the large FTO's on completion of the course is very small due to the majority of professional training they complete, requiring experienced instructors.
WD