don't know why I didn't do this a bit earlier, but I plugged my top choices into forza 4 and dropped them on a similar looking version of my car. these aren't the exact exact wheels, but they are both quite similar. not sure how much I really like the split spoke style anymore..
tomorrow I will begin measuring all of the diameters, offsets, width, etc for whichever wheel I pick. going to be using the Percy's wheel-rite tool. hope I get this right...