The previous comment, I believe, was mistaken. Getting rid of Auras is not the best idea - particularly when they have the potential to provide a steady source of card draw with the Enchantress effects from the raided Go-Shintai. 

The real strength of this deck, I think, is going to come from using the "top card of library" stuff. Lots of scrying, lots of visibility into it. You'd basically not really ever run out of cards in hand, since you always have a library; that seems like it would be an advantage that could be to your advantage. Toss in the Temporal Anchor (which can hopefully be found somewhere) and we're really on to something. 

To that end, I figure the mix of creatures, Auras, and Equipment should be shaken up a bit so that we can make the most of all of the effects possible. I'll stuff some bits in from Go-Shintai and see where we end up.

Couple of things that would be smart ways to make this better:

1. Lose the Auras. Don't get me wrong, Auras are great - but Galea's main thing is auto-Equipping things, since that's a big mana savings. 

2. Add some extra creatures. If you did like 5 more creatures and 12 more Equipments or something you'd be in business. Too many times you'll end up with a deck full of stuff and no one to attach it to, other than Galea.

3. Card draw. It's pretty rough. There are a few sources (Greater Good, Brainstorm, Serum Visions, C-ES) but not nearly enough for a game of EDH. C-ES is probably the most efficient but it's pretty fragile. Just needs more.

I'll do some poking around and see what equipment is available that might be a good, cheap way to upgrade. (BTW, the deck sits at about $90 right now - that's largely because Heroic Intervention is around $20. It could be replaced too, if I was worried about going over.)