The cover,can't come off without removing the exhaust crossover, and the starter...a wonderful design.
leak points...modulator o-ring, shift shaft seal, trans kickdown sensor seal, tranny dip stick tube seal.
those are,easy fixes and visible....then theres main converter seal and pump seal.
if it's in Leaking from the drain hole it most likely the front seal...but,removing the cover and getting a visual
will show you where it's coming from....but as stated above. Get it cleaned up....wipe it down wit brake cleaner.