66 Dart GT HT Whatsitgonnabe?

Try submerging the whole assembly in a solution of feed grade molasses mixed with water for about a week. Look this up on the net molasses chelation. It removes rust from steel parts. This will help getting it much cleaner, then use a solution like CLR or liquid tarnex on the variable resistor wiper assembly.

You can get floats new for cheap if this ones no good. And i think somebody posted the proper ohms readings required for full, half, and empty.

Btw, i can get a weight in lbs for you on that mini starter if you want, so you have an idea what it should cost to ship if you find one.