I know these are the wrong size but how about 18 x 10 (6" BS) and 17 x 8" (4.75") CL205's with painted centers?
See pictures on the link. I am not going to use them and just have not got around to listing them yet. Have not thought about price so PM if these interest you. Would sell with or without tires.
http://ls3-chevelle.com/Current_Updates.php
Thanks,