Mr. Know It All,
Here's an update for you and interested readers:
Elite Movers charges $250 for an inspection and quote. He was very professional and seemed knowledgable. Also, they are a moving company, so could potentially be a one-stop shop for new homebuyers.
However, they are definitely on the pricier end (we compared 4 different quotes and they were highest). In addition, he cautioned that the actual quote given could be higher due to unknown factors (that may occur during renovations). It was good he was up front and honest about that!
For comparison purposes, for our 880 sq ft. flat (3 bedrooms), it was $40,000HKD to redo our walls (replaster + repaint), excluding kitchen and bathrooms. (We also asked for additional work, but list is too long.
In the end, we decided to go with a local contractor who is cheaper ($28,000 for walls) and they claim to be able to complete the work in 1/2 the time (2 weeks instead of 4), so can't comment on the quality of their work.
Thanks again for your help!