You're right, eventually he will screw up his fusebox.Yes fuel pump relay. I believe it's in the rear fuse box.
My concern with pulling out the fuel pump relay fuse from the fuse box might weaken the connectors over time causing it to become worn out/loose?
I'm not sure if there designed to be pulled out and put back in multiple times
If OP really wants to just pull fuses instead of wiring in a switch then there are fuse adapters at NAPA and you can wear those out instead.
Better to trace the wire and wire inn a switch.