I tried finding one but couldn't, I bought a regulator for mine a while back as it had all the symptoms of it being gone, but after I changed it turned out it was the stator inside the alternator. I saw a note on the valeo service page saying your alternator has an internal regulator not sure if thats true though.
My advice would be just get a new alternator, it isn't worth pissing about tbh and what you'll find is, if that part has gone it could have damaged something else as an effect.