Hey Chris,
I have a T3 that was sent to me with an AAZ. The PO said the turbo was from a junkyard and he had not run it. There is wear to the compressor wheel.
I ran a turbo with a much worse looking compressor on a far higher performance engine (a Mitsubishi 4g63) and had no problems whatsoever. But I tend to do what I'm told when it comes to these VW diesel engines, and it was suggested that it's probably not a good idea to run it with the wheel as it is.
I doubt that this is of any help to you, given what you say you're looking for, but I thought I'd mention it. I can post pictures if you'd like.