Check prices for new ones at GCG....I think you should be able to find a good new ball-bearing turbo for that price. Or search Ebay theres usually a couple of good ones on there.
For example - $550 brand new!!!

Not trying to start anything, but just sharing my personal experience with Precision turbos....They rebuilt and high-flowed a TO4 for me and a week later it fell apart and destroyed my new engine. I've also heard a few other people complain about them and an engine builder I use stopped using them and went to GCG. Could explain the price difference