They don't make them anymore. The real-deal Honda OEM saddlebag rails sometimes pop up on ebay (used). But be forwarded.....if you want them, be prepared for a bidding war as they can get pretty spendy. It just depends on how bad you want a set.
Here's a couple that went recently on ebay to get an idea.....
http://www.ebay.com/itm/140638312615?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649http://www.ebay.com/itm/110763208453?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649Although there's not any listed on ebay right now, there's usually a guy that sells knock-off versions. Sometimes they go cheaper than used real ones....sometimes not. Some have reported after buying the knock-offs that they've had to "tweak" them a little to get them to fit right. Others have said that they're happy with them.
Your other option is to check the VRCC or the VOAI classifieds. Or you can post an ad in the classifieds asking to buy a set.