72 Scamp lenses rear & front

I believe a 72 Scamp has the same front lenses as a Duster. The rear lenses are the problem. You can get new 1970 Dart lenses and they fit and work fine, but the pattern cast into the lenses are different. Original Scamp lenses have a diamond pattern while Dart lenses have concentric circles. Only a rear A-body geek would pick it up but nobody repops the Scamp lenses