There is no limit on taking wine into HK since duty was abolished so customs isn't an issue. I've packed multiple bottles into checked baggage before and they have all arrived safely (thanks to bubble-wrap etc), but have never shipped a whole case. I'd imagine the possible issues would be whether the airlines you are travelling with allow it (can't see why not) and it actually making it to the final destination - you're obviously not going to highlight it as containing wine, but it might still be a little difficult to disguise.