IS still has the dual wing option available for anyone that's interested. I'm not seeing the two single options available though.
I thought about canceling my SS order and getting the two wings from IS- but in addition to $25 more for shipping on top of the $300 more for the statue itself, I'd be kissing my $120 deposit goodbye too.
Where I intend to put it now, I'd actually have the room for the open wings occasionally. Not a good time for an extra $450 bump, unfortunately