Update: This leak is still active. I replaced the distributor o-ring and am now not getting any leak from there. I didn't see any other places where oil was emanating from the engine, so I figured it must be the trans. I planned on topping off the trans to see how much it took, but it started dripping out of the fill hole after I took the plug out, so I'm clearly not losing any from the trans.
I can follow the oil trail to the motor mount on the x-beam near the firewall, from there I can't see anything. I run my oil around 7k miles between changes and I haven't been missing much. It only drips while in motion, my garage floor is spotless.