Put up a wanted add on this site, someone will give them to you for free, you'll have to cover shipping, many guys just throw them in the trash. Junk yards will have them cheap too, you shouldn't pay more than 5-10.00 a rim, sand blast'em up and paint. Sorry I threw mine out the day after I bought my car.
Yea, this is just one of many things I've thrown away from this car since I bought it in 1975. Who knew I'd get so old I'd want to get rid of the chrome reverse wheels and headers and go back to wheel covers and stock exhaust. LOL
By the way, I'd REALLY like to find a clean set of the optional mag style wheel covers, or even the standard type.