i was the staff engineer for a medium size industrial motor repair shop. i designed, assembled, installed, and repaired industrial machinery and controls. i also did all the custom calculations for repairing ac and dc motors.
the frames of the alternators for our cars are really small and it's pretty tough to get enough wire in them to make 110 amps. at best those alternators would work with an extremely shortened life. my personal opinion the auction listing is optimistic.
that alternator would make 110 amps for an instant just as lightning hit your car.