Flat army green could be sweet!! If they're 5x112, I don't remember corvette bolt pattern's, you'll need a pretty big spacer in front and rear. A 30mm in the rear would put it at ET31 which would be nice and then front 25mm would put it at +31, might want the offset a little lower though, but I dont even know if it's safe to run that big of a spacer up front.
Also, based off what I've just looked up it's looking like 56 and 61 are the offsets on those sizes for sure, which you already know.
Modified by colinisneat at 8:34 PM 3-25-2010