Thanks to everyone.
I ran the fuel line inside the frame rail and then ran about 9 feet of 1/2-inch plumbing insulation (the black foam stuff) over the fuel line. Nice protection!
I also installed the new fuel pump and everything went very well. No leaks. Job well done, I'm happy to say!
Now I'm thinking about adding a Fram HPG1 Performance Fuel filter back by the fuel tank, before the fuel pump. See here:
Is that the correct type of filter for me to use (before the fuel pump)?