C6Z wheels on a C5 question.

I just purchased a set of '06 C6 Z06 factory wheels from a fellow member and I'm just wondering what kind of spacers I'll need to fit them on my '03 C5 vert MN6 and also where I may purchase them in Canada first, the US second. Also I have a a fairly new set of Wide Oval 295-35-18's on my a$$ end now will they fit on the front of the Z06 wheels. All help is appreciated.
TIA.


