i advice you try some local designers for second opinion. buildings are made differently.. hk being a land hungry country, the way a person uses the space in the house is different as compared to other countries where space are cheaper.
in hk many of the false ceilings serve some additional purpose as well, e.g. storage spaces.. so some of them are made to take heavier weights.
check what you need and what is the objective, and ask for a quote to order.