Like people have said earlier, The BME is lighter, but not as much power. The DA would probably be your best bet considering the fact that you will need that nose weight anyway. You would have to add weight to the BME to make the cg right, but because it has less power than the DA, the performance wouldn't be as good. No matter what engine you chose, you will be happy, I just think you would like the DA better. And whatever you do, DO NOT put a Zenoah GT-80 on it. Good Luck