If you can get a job in HK, i would say you should stay there. Your housing allowance not even enough to rent a room in Doha.

I been to HK few times ... with the money you earn, IMO it is not worth it to come all the way here with the salary. Leaving your family and friends behind? Qatar is not a cheap place to live ... i can say nearly not far off from HK in term of housing prices. Price here for looking for somewhere to stay is crazy.

And you will miss HK food as soon as you get here.