66 Barracuda Blower Motor Resistor

Curious if this problem has been resolved or fixed. Anyone know if it's possible to build your own resistor? My 68 barracudas resistor is looking pretty rough and rusty. I'd like to replace or maybe build my own? I'm thinking, maybe find out the resistance needed and just build yer own? Any ideas? Anyone ever done that?

Edit: mine is a 2 speed switch.