Here's a 520 that I picked up recently on e-bay:
http://cgi.ebay.com/ws/eBayISAPI.dll...ayphotohosting
Some thought I paid a bit much, but
it's all relative - I wanted a nice lugged steel frame (this one's like new, and is a '93), and wanted to be riding instead of putting one together. I already had Jandd Expedition racks, a better saddle, etc. - I couldn't be happier with the deal!