I just installed a caliper I found on eBay from seller recycle-shop, which was in used but great condition. Mine had the pin that holds the pads virtually welded in, and I needed to install new pads.
Just wanted you all to know this seller seems reputable.
So who is the reputable seller? Ebay has many many sellers of used parts. I have purchased used and OEM parts from several of them and all have been as advertised. There are many other scrappers on Ebay. Just wondered who you bought from. I assume the caliper worked out?