Non rallye fuel gauge accurate??

What you guys can tell me about the non rallye fuel gauge from a Duster?

Is it reliable or accurate?

I have a new fuel sending unit, gaz tank, and new wiring.....so beside the gauge itself and the circuit board, everything else will be new.
Circuit board and pin look fairly good and no damage.

Do you guys think the 40+ years stock gauge will be fine and accurate?