Parts haven't been all that difficult for the post part, but you might find a few that are. Are you in Hong Kong then? Most forum members are in the USA, but I believe there are a few in your area. They might be able to recomend a source for parts and possibly a mechanic.
Someone else will mention it if I don't. You will want to fill in your profile so we know what you have and where you are. Helps us make better recomendations.