Please Help! Have video doorbell, but mechanical chime wiring not good

Our sweet daughter bought us a Ring Pro video doorbell for Christmas. We have since discovered that our original (OLD house) doorbell wiring FROM THE CHIME TO THE TRANSPONDER does not work. We, of course, don't want to rip into a wall to repair that wiring. The question is: Can we purchase a battery operated mechanical chime and somehow use that with a ring doorbell that is wired into our old doorbell spot? At this point we can't return the Ring Pro wired version (I know they sell a battery operated one). Any suggestions?