72 dart ash tray/lighter aluminum Holder HELP

Ash tray aluminum holder. Recommendations on better cleaning or should I paint it?
I have soaked in White Vinegar/Water for 30 hours. Wire Brush and 000 steel wool.
I would appreciate any recommendations or possible solutions.

Thanks
Olenavy72Dart72 dart a body ash tray lighter holder frame.JPG 72 dart a body ash tray lighter holder frame1.JPG 72 dart a body ash tray lighter holder frame2.JPG