Craft shoulders until you get 70+ all rez and some vit, the strength ones. Also craft strength bracers until you get crit,vit,all rez. That's what I would do in your case, even if you lose the 12ms... If you can make room for rend(with blood lust), for extra sustain, it will also be good.
That is if you want to stay with skorn, but I think you can change to dual wield with echoing fury on off hand.
Here is a link with a 50mil budget build .
With that pattern, considering you have 500mil not 50 and prices are lower now , you will be upgrading a lot.