Bottle with hard edges modelling (rail sweep, loft or something else)

 From:  AndrewG
8561.1 
Hi,

Once again I come here for help. I`m trying to model another bottle - and this time it is far more complicated. I tried few approaches to this topic, and every time I failed.

This is the bottle I`m talking about:



And here we have my complete disasters:



Please dont get me wrong, I`m not expecting that someone will do this for me, but can you share with me a general approach how would you do this bottle? A have a little experience in Moi, and I`m afraid that this bottle overwhelm me. :)