I'm not sure if this will be of any help, but when I had my acci. a while back, my r/r rim was flat spotted.
The ins. co. wouldn't spring for a new rim as they have had good results having them straightened.
My body shop guy, who I know & trust, verified this.
Anyhoo, I believe it was sent to Keystone for straightening & came back perfect. They may be your best bet for re-chroming.
Give a couple calls to body shops in your area to ck. on this, or maybe google Keystone ?