Need to know how big Silverfrost Mountain expansion update is

[BabyKurama]

So the thing is my network is slower then a snail right now.

So before I even try to update I wanna know how big this update is, so I know if I should even try to get it now.

 

I got a 350mb download when I launched (after waiting for 30min -_-) but I have a feeling that it's not the entire update