Tech inspector's advice is right on.
I have a Hobbs switch with primer button on my roadster.

One thing you should pay attention to is how much voltage at the pump with the wiring you plan to run.
I found it to be fairly low in my car since the fuel pump wire went from source to fuse to ignition switch to Hobbs switch to pump.

Voltage was low enough that it probably contributed to the short life of a couple of my Holley pumps before I figured it out.

A constant duty relay with short run of ten gauge - the relay operatiorn supplied by the original wiring - and a short run of 14 gage to the pump had pump voltage matching battery voltage of 12.8 with engine off.

Seems like the voltage was in the mid 11's with engine off in the original configuration.