Appriciate your love and care for a kid. I think Coping with a academics might not be very difficult . The main issue will be adjusting with completely different culture n lifestyle. He will struggle with getting school friends n trying to be like them. You should also remember that you won't be able to spend much time with him since you will be busy with your own professional life. There is absolutely no help for household stuff.. AHAD kids need lot of attention. He is also approaching his pre teens so not so easy for you to handle him alone without his parents.At the end Every kid need his parents the most . Think wisely and decide.