When scrapbook stores close they often sell the wire paper racks. I've come across them from time to time that way.
My husband got mine in the dumpster behind Michaels when they were remodelling and changing the scrapbook section around.
I'll check around - the ones from the stores do show up from times to time.
One of the scrapbook stores near here started selling more card stuff and less papers for scrapbooking so they sold 3 or 4 a few months ago.
If you shop in a scrapbook store regularly maybe they could special order one for you.