I did have have my transmission rebuilt - by Gary Fairbanks in CT. He is one of the best and super nice guy as well.
Dropped the engine, replaced the clutch, adjusted valves, replace some gaskets, etc.
I am by no means and expert - but might be able to offer an extra set of eyes for the oil leak and other stuff.
Are you having any problems? How much oil is leaking? I had leaks in the beginning - but resolved. I think it was the oil return lines.
It took about 2 years before I felt my car was well sorted - but now it has been problem free for about 1 year (knock on wood.)
I am also going to Autox with the Porsche PCA on March 25th if you are interested.
You will really find out what your car is capable of (if you don't already know.)
Schedule
I will also pm you with my phone number - but feel free to tell more on this board.