I added in the Mercury s5 option because those cases are sweet. I posted my thoughts about GB for those sorts of cases in the discussion on massdrop tho if you want to take a look.
I personally think that doing a group buy on something as absurdly customizable as these may be very difficult since most people will not want the base option set if they are spending at least $300 on a case. I know for a fact that the base options on caselabs stuff does not work for my rig.