I have a couple sets of 18's

New 2011 take off set of 18" Style 209 with TPMS (pre October build which will work on your '08), factory mounted Bridgestone All Season Runflats & Center Caps

also an as new set of 18" Style 210 complete with all of the above with a few hundred miles on them

I have them at the Dealership - will take photos and email. Both sets are mint and complete - just mount and go.
I am in Westport, CT