How did you break it? Got some pictures? I have the same loader and it would be nice to know where it broke as I do more digging than I should, carefully, but there's always the odd hard hit...
I would either try getting a used one from a wrecker, or get it welded by someone who knows what they are doing.
I would think either would be far cheaper and easier to find than an aftermarket one.
Also have a close look at your loader mount, for cracks and bending.
The NX series and the NS tractors are basically the same size as well, and I wonder if the loader arms are the same distance apart, same side hyd lines? If so I bet you could just bolt one of them on to the loader side mounting plates. All the specs look very close but you'd have to crawl all over one with a tape and see if it would work. Actually if they are slightly wider or narrower, cutting and sleeving the tube that joins the arms together, isn't a big deal to weld.