My thoughts:
There is nothing wrong with the trans. David Kee failures are very very rare, so I'm 99% sure we can rule that out.
The leak of
oil in the picture is almost "normal" for an FE. It does not appear to have damaged or be a factor with the clutch. At this time I would rule out replacing gaskets and seals until you have more evidence.
I have lost GOOD clutches within 5,000 miles. The original owner lost the clutch, replaced it with something else and now it is worn again. Yes, that happens with a powerful engine, and it will happen again UNTIL you get the right clutch. I bought a couple of clutches before finding the right one, which I think I have now.
Contact B2Motorsports, Blykins (Brent) and work with on getting the right clutch setup this time. I suspect it should be the same one I have!
The
oil leak could be from a number of places but NOT likely a rear main seal. This is simple, replace the clutch, again, like many of us have had to do. Form the pics the leak is NOT a rear main seal. More likely it is from the valve cover gaskets or rear of the intake or some other minor issue. The
oil ALWAYS runs toward the rear and makes it LOOK like it's leaking from there, but it is not. Order the clutch disc and pressure plate, take the parts to a mechanic. Have the clutch replaced AND have the mechanic re-surface the flywheel before installing new parts. Tighten/Inspect valve cover's and intake for leaks.