Inexpensive 17x10 Wheels

["Jeff Winchell" <Jeff@Winchell.Com>]

I'm looking for inexpensive 17x10 wheels for a 98 mustang cobra (for 
open track and somewhat competitive Solo I - not for street). The 
mustang publications seem to focus only on 17x9 Cobra R wheels as 
their largest wheel. 

Anyone know where I should try? (And approximate cost?) 

Used wheels are an acceptable solution too. 

Thanks.