The stock specs for the fuel sender are 20 ohms full, 220 ohms empty.
Other than getting a gauge to match those specs, in order to get the right sort of resistance for your gauge, you could try running a resistor in parallel with the fuel sender to lower the resistance.
A 110 ohm resistor would give give resistances of 17 full and 73 empty.
A 120 ohm resistor would give give resistances of 17 full and 78 empty.
Actual values would differ slightly due to resistance tolerances of the sender and parallel resistor. At 17 ohms you'd probably never see a full indication with a full tank, but you would get a pretty accurate indication of low fuel which is obviously more important. Either one should work pretty well for you.