New Territories can be one of your options as it is popular for industrial.
Yes. It is possible.
The average cost for a serviced office with 2 or 3 workstations in Hong Kong is around HKD20,000 – 35,000 (USD 2580 – USD 4520). If you would like to have an office with 4 to 5 workstations, it is priced from HKD50,000 (USD 6451) upwards.