110 rear windscreen wiper motor

A quick question - the rear windscreen wiper on my 1997 110 has not been working since I had her. I have just taken it apart and can categorically state that the motor will never turn again. It basically is a solid lump but the gearbox is working fine.
Now for the question : Is it possible to get just a new motor or should I just bite the bullet and get a whole new unit? Does anyone know where I might get a second hand one ?
I have done a search but can not find anything - all help appreciated

It took me less than 2 minutes on fleabay to come up with this link

thanks and well found. I will go away and hang my head in shame and work on my searches
:doh: and there is me a computer profesional as well. Really must do better