If the prop is otherwise in good shape, I'd get it re-hubbed. Take it to a Johhnyrude dealer and they can do it or send it out and have it done. I just had one re-hubbed and it cost about $35.
if it is nicked etc, it can be totally refurbished just like a new for around $75.00. if you put your location, in your profile, we might recommend some one.