Thanks for posting those pics. I don't think this is what I'm looking for though. It seems these spoilers have just reached an age where they are all rusting underneath, or all need to be replaced. I going to see if I can get MSA to reproduce the part. If there's a high enough need for them, the owner may reproduce it.
It would be nice to compare your turbo install to mine. I did mine about 8yrs ago. Its a daily driver when I do not need A/C. If I sell the 280zx I want to install one. Looking at the one in Motorsport.