hi smallworld, I enquired with Shang on their solemnization package previously. For 2006, the hi-tea package, (about 3 snacks per guest) for 50 guests is $5k. THis includes rental of a location (ie. including waterfall terrace) for solemnization, a cake, the decoration (floral set up), champagne pyramid, soft drinks for guests, and a 45-min musical band.
I think can top up to make it a lunch/dinner but didn't enquire.
I think the package could be on Shang's website.