Okay, I saw some comments that seem like nonsense, so I decided to skip.
In Hong Kong, you should try to stay in the vicinity of Robinson Road (in the Island [Soho-Mid Levels]) which is close to the official shul and chabad.
I stayed at the Bishop Lei International house (=hotel), which was okay.
Make sure you ask for a low low floor !
Concerning Bangkok, if you are a seasoned traveler you would finish visiting it in half-three quarter day.
Besides the Grand Palace there isn't so much to see. (the boat-market isn't every day). (chabad is beautiful there, having even an elal check-in counter
).
I would suggest that you take a 1 hour flight south, where you have magnificent scenery.
(sorry for the vague hints, its just quite late here, and the fireworks is keeping me awake.