The clever bit is at the front, routing it from the rocker into the engine compartment; spend some time looking at how you want to do it.
Also the area where you go from inside the rear rail to the rocker, avoid the jacking point.
If you have subframe ties, that's all easier as a tie provides a more direct path.
Another thing to consider is securing the line so it's not flopping/flexing/drooping and is aesthetically pleasing.