Like I said he just put 4 brand new falken tires on them. Not to mention these wheels are only a couple months old. Shit the tires alone were 5 something mounted and balanced (last week). So your deff. not getting them for $500. $750-$800 is more realistic, and thats a damn good deal 4 perfect chrome z06's 17's in the front and 18's out back with brand new tires all around. You would spend near $1200-$1400 even on ebay.

$1400
eBay Motors: AFS Corvette ZO6 Z06 Chrome Wheels 18 x9.5+10.5 Tires (item 230194072872 end time Nov-26-07 19:59:10 PST)

$1300
eBay Motors: 18" Polished Corvette ZO6 Z06 wheels 295 / 265 tires (item 290184768642 end time Nov-25-07 19:25:39 PST)

so at $800 these are a steal. If he cant get what he wants here he will most likely just keep them or throw themon ebay.