RCS,
Have you considered becoming a signal provider, introducing broker, CTA? I am not sure what the regulations are like in Hong Kong, but these could be good ways to increase your income and reduce the variability of your returns. They will most likely require an upfront investment in time and money, but it seems like you are more interested in long term returns and it wouldn't require too much extra work once you are established. Just a thought, but the plan you have looks great if you can stick with it.
Good luck!
Tad