I just read through your thread, how did I miss this before?
Great progress!
As for the pans and the oil pumps, the one they sent you is wider as it is set up for the 2nd gen style CAS. The narrower oil pump was for the 1st gen style that you can manually adjust.
Since you're using a 1st gen narrower oil pump you will be able to use a '91-'92 TT oil pan. That is pretty cool actually.
-John