Snow Dragon, as pointed out, you will be unable to commute from anywhere except Tung Chung.
If you share a flat with 5 or so helpers, and live on rice, you might be able to put away enough for a deposit on a pretty nice 10-15 year old used japanese car.....in 2-3 years.
Of course the 500 hours F/O time on the 737 that you will accumulate in those 2-3 years will be invaluable.
Good luck