MEATS!!!! LOVE IT!!!!
I would NOT use the lugs from whatever other rims you were using without talking to CCW. It is very possible you will need new lugs. Call CCW and ask them, you can tell them what other rims you were running and they will know the answer. They can also tell you what taper you need, and you can probably buy lugs locally (or have them ship them). Make sure you check with them...
if for any reason they can't help you, let me and brian know and we can overnight you a set.
to round out your suspension package, now you need the front splitter and new wing supports to reposition the rear wing. those are relatively inexpensive add-ons that really round out the package.
enjoy!! it will be a HUGE difference!