What is the maximum resolution that a 6.1 Mac Pro MDP can output with Dual Link DVI Adapters?

I am trying to achieve 4 outputs:

1: Local 1080p
2: 3840x2160 @ 25 THTG (2x 1920x1080 @50)
3: 2800x2100 @ 25 THTG (2x 1400x1050 @50)
4: 2560x1600 @ 25 THTG (2x 1280x800 @50)

Also trying to get a Thunderbolt PCIe chassis inline with 2x Phoenix Cards.

Thanks....