[RndTbl] Looking for a used rack mount UPS

Hey everyone, I'm looking to buy a used rack mount UPS to replace a couple of standalone units I've got sitting on a shelf in my rack. Specifically I'm looking for one with expandable capacity to get extended run time for my network gear if there's a long power outage. Realistically I only need about 1000VA since I just run a couple single socket machines, but larger would be fine too. If you've got one let me know, I'll be happy to lug it out of your basement for you! -- Wyatt Zacharias