Packrat - left you alone for a little while & look what you have done!
I have not been inside one of these for a LONG time.
I would suggest the convertor be opened up - the parts are not too expensive to reseal & if you put it back together & same leak is there - you will kick yourself.
Best to dot your i's & cross your t's in this instance.
Couple of places to look - (I've borrowed willie's pic)
1) the pump drive gear (9) has a bushing in it, if they are excessively worn, this can create leakage. Also where the bushing runs on the carrier (8) they can get a nasty wear groove, if it has a groove this requires attention.
2) where the bolts (11) for the cover, screw into the main housing - look for cracks at each drilling - this creates leakage.
#24 is a seal & i can't be certain what job it actually has - but goes without saying - do them all.
Have you had a better look at that compression fitting yet? - try to pressurize the line to see if cracked.