Close as you will come to getting an OEM fuel sender..

The full tank resistance is closer to 74 Ohms. So 80 isn't awful.
Maybe it also matches the later fuel gages @RedFish mentions in this post: Gauge Cluster Issues/IVR

@toolmanmike This shows the internals and more
Thermal-Electric Gauges (Session 227) from the Master Technician's Service Conference
Per Stewart Warner specs, these are 80-10 instruments. 80 ohms = no needle movement. In the case of fuel gauge, 73 ohms will lift the needle to the first/empty hash mark. The tester used by service techs had less than 80 ohms for starting point because 80 or greater ohms would not have been a test. 80 or greater leaves you scratching your head, "Does it work or not?" I hope that makes sense.
Half range is 23 ohms. Calculator says half way between 80 and 10 is 45 but that's not how a thermal resistor instrument works. As a thermal resistor wire heats up its per inch resistance changes. Max range is 10 ohms.