WANTED: 18" 8.5/9.5 Volk GT-C's or GT-7's
 

If anyone has a set for sell or know someone who does please let me know.
I drive a 2005 G Coupe, so offsets need to be +30 max.
I live in Orange County, CA and would prefer local pickup.

If not, does anyone know a good online store or a place in SoCal that has good deals on wheels (preferably Volk's)?

I know of TireRack and right now they have a great deal on the Speed Star Wheel D5R, but the offset on the rear 18x10 is +37mm. Is that too high?
What are the preferable offsets for the G Coupe?
Sorry I'm a newbie and not very knowledgeable, so whatever help you guy can give I'd really appreciate it, thanks!