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

@Arron tate How did you take that photo inside a tank? Very impressive.

FWIW @Dana67Dart made this chart, with a later mopar sender.
View attachment 1715537067
He tested by pouring fuel into the tank, 1 measured gallon at a time.
From here: Fuel Gauge Sending Units compared
Will higher resistance read lower on the gauge? (looking at the Spectra sender at about 3 gallons)