That all depends upon what you're getting with the "complete" setup... two wings and a stainless steel backplate? single tank adapter?
Think I paid about $500 for a single wing, double wing and stainless steel backplate with ok (but not new) webbing. Including the weight pouches, MC storage pak and cam straps with metal buckles. Oh and there was a small stainless knife and an extra buckle. The inflator had already been replaced.
I love it and dive it often. It replace my standard recreational wing and it's all I pretty much use now. Singles, doubles, doesn't matter... I just pull off the cam straps and singles wing, slap the backplate + doubles wing on to my doubles and I'm ready to dive doubles.
This year I might have to finally replace the harness since it's starting to show some wear after about 200+ dives on it.
Dave