I think I may have what you re looking for- it's like new and I was told it's for a 72 turbo, I ll be at my shop tomorrow to verify the stamped numbers.
That is a precision part number for a .85 a/r 3 bolt housing machined for a gtq ex wheel. Any .85 a/r gtq 3 bolt ex housing will be the same. Compressor doesn't matter. Precision should have some on the shelf