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

@rich006 tested an earlier original sender, that seems to be the type use in the 60s.
But I *think* the fuel level was estimated from angle, not measured direct. Maybe he'll chime in and clarify. Anyway it looks similar to Dana's findings but shows the longer arm covers the full range better.

orx3fpj-png.png

he was the thread starter Fuel Gauge Sending Units compared