I fit three 52mm greddy's in the LoTek Inc pod (www.gaugepods.com) with some minor dremeling to open up the holes a bit. I almost prefer this because then I know the holes aren't so big that the gauges may not stay in place. Typically these pillars are open enough that wiring is not an issue. I did, however, have a problem getting the bottom screw (near cluster visor) to get in, kind of a crappy angle to drill.
EDIT: The gray paint option is a perfect match to the pillar being removed.