Where can i find stock 18" GXP Rims online?

How much do these rims usually cost for a pair of 4?

I want to put them on my 02" SSEi.

since these are just stock factory rims that look good, shouldnt they be cheaper then most aftermarket 18" rims?

they are very hard to get a finger on, it would be cheaper and easier to find some aftermarket look alikes

Try Ebay.
I found one guy selling some for a couple hundo per wheel.