Mining with with CM storm trooper case?

[GizmoOG]

SO I'm about to make a small mining rig with 4-6 gpu's. I have an old CM storm trooper case lying unused in the basement and figured, why not take it to use if it's suitable. The case itself is pretty big, so if I put a motherboard with 6+ pci slots inside, it should be all good? I don't know maybe I can modify the case fans to get better airflow at the cards, I haven't looked at that yet, but it is in an open enviroment afterall so they shouldn't run too hot imo. Only thing that might become an issue it that I'm probably gonna need 2 750w psu's, and it's hard to fit both into the case.
Thanks for inputs!