Engine needed for 1990 S4

I am looking for a good engine to swap out my recently seized engine.  Had catastrophic Thrust Bearing Failure and engine is seized, from what I understand ruined.  From what I understand hese engines are beyond economical repair.  Anyone have an engine availabe or recommendations, please let me know.

 

For those of you not familiar with the thrust bearing issue, see the attached article on the subject that I wrote.  For those of you who own newer 928s with automatic transmissions, it is wise to get it checked periodically.

It may be worth having the engine opened up to determine the scale of damage.  Also, you may be able to sell some of the valuable parts that are not damaged.