Don't fight the forces dude?
im an ex t/a owner, but the fox is always drawed me back too, yea i was looking for a lx hatch, but had a hard time, and on a choice from an aod hatch, and a 5spd coupe, i love my notch now, but any 5oh will do.
Mine has a record of maintenance, and old THP car, i knew it was taken care of somewhat, but i wont say they arent prone to anything like you mentioned "leaking" oil...ect, but i have nothing but good luck, but had 1 fuel pump go out, which is usualy pretty frequent on 86-93 stangs, had my car over a yr, it has 170K now on it, running 13.9 ,and only a whining tranny, which needs a rebuild from hard powershifts.
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90 lx coupe: Mac cold air fenderwell, accel supercoil,advncd ignition,3-core radiatr, FMS alum D/S, Black magic fan, 3.27grs, 3chbr flows.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 97.80
Best 60': 2.0047
next mods: subframes, mac h-pipe