Steve,
I bought a whole new Contax 645 outfit 2 years ago, camera and five lenses when i was in Hong Kong and saved a fortune on UK prices, but the HK prices have risen steeply in last 2 years. I know when i last enquired about shipping something the price was not worth considering, however i would trust most of the HK sellers especially if they are big e-bay players and would contact them in advance to have a chat.
Regards, Gary.