I got the new fuel lines last night, but before I installed them, I removed the leaking line and carefully cleaned off the fitting's mating points (both on the line and on the fuel rail side), and made sure everything was alignend correctly, but it still leaked. I repeated the precess several times, and it continued to leak like a sieve, so I put the new line on, and the leak is gone. So my fuel line (on the inlet side) was actually bad.
But the car is still stranded at the shop. It was dark by the time I got the new fuel line on, and while my new headlights work, I discovered that the tail lights don't! Aaarrrgghhh!!!! Yet another thing to fix. I'll swing by the shop tonight before it gets dark and drive the car home, then start tearing into the wonky passenger side shock mounting bolt, the nonfunctional power steering, and now the tail lights, which worked before the project becan, and which I never directly touched. Oh what fun...