Wiper Motor Restoration

I need some help here guys. I'm restoring my 70 Dart from top to bottom and I've run into a road block here. I'm wanting someone to restore my wiper motor and I can't find anyone that does it anymore. There were a couple of places that did them, like the "Wiper Man" and "Year-One," but they no longer provide this service. Has anyone had theirs restored back to it's original. I have to get mine checked over and wires replaced. Or can I purchase a restored one from someone. Please, need help to continue restoration. Thanks ED..............