To Effee,
I suppose you are extremely rich to do a 4 years Engineering Degree as well as a CPL! Let me estimate, it should cost you more than SGD250K!
1) Are you sure you can get an FAA ATP in 4 years while you are studying?
2) Do you have the time while studying?
3) Do you think you can work as a FI while studying? You will be sacked from the University and exptraited from US immediately once you are caught! Worst come to worst, your FAA licence might be revoked. Even if you are able to work as a FI, who dares to employ you holding a student VISA!