I took a closer look at the MSI workstation line of product and the WT60 (http://us.msi.com/product/workstation/W ... o-overview) seems like it could be a great option if you can spare the extra change.
The Nvidia Quadro K3100M GPU is much closer to the 970m in specs and with one HDMI and two MiniDP 1.2 video outputs using MST you should be able to get 5 HD displays out.