It looks like you're in the 600 range and you *might* hit 700 if you do really well on the actual exam. However, don't just take your practice exams as the sole indicator of your real score. Many things come into play on the real exam - exam anxiety, panic, psychology. Since you only get one chance (unless you retake), make sure you're confident going into each question type and that you're prepared with an attack strategy.
But 600s sounds right based on the scores you've gotten.