Theres only one place I know that sells those, and they only have a 1515 1y for $99 ( must be getting rid of that line up or something ? ).
I'd contact neu and see what they say about your issue- wires shorting on the can has been fixed with newer neus by adding rubber grommets around the wires where they enter the can. Otherwise I think you're looking at maybe a tekin motor possibly for ~$170, or a used medusa if you get really lucky- Linc probably has something suitable for sale, you know what hes like for collecting motors