Looks like a pretty clean setup man!

I do wanna save you the pain of potentially fucking up a card or even the whole rig by doing what I almost did.. And that's completely going brain dead and remembering that metal wire frames can potentially cause cards to short out and get bricked or just fry the entire rig :o

I have found the Styrofoam that comes with the GPU's to be a quick, not to mention free, way of just protecting your rig.

Keep calm and mine on :P