I don't think it was the cooler lines. I've had them off, and so has the dealership, with no change in leakage. Right now, I think it was mainly the front oil seal and the front cover. When I got the balancer off, there was oil sitting on the inside (I tried to take a pic of it). The exsisting front cover gasket has a few areas missing (aka, not stuck to block), with no trace of the missing pieces stuck to cover or broken off when I removed it.
The timing chain, as you can see, has quite a bit of slack taken up by the tensioner, and the other side has about 1/4 inch or so sideways play in it. The FSM says no more than one inch, does that mean with or without the tensioner taking some up?