I got it done very easily. I ended up NOT re-installing the clamp for cylinders 1 & 2 injector lines because I would have had to force them closer together... this might have been what caused the breakage of the line in the first place. I observed the vibration of the #2 line shortly after starting the engine and that line probably vibrates the least amount of the 4, so I'm not worried.
In the pic it looks very close to the aluminum tab on the pump, near where it broke. Those weren't somehow vibrating against each other? There is a place with more durable #2 lines but I can't remember where,.. ebay?