WTB: Light Switch for 71' Scamp

Hello Everyone,
I'm thinking that I need a new light switch for my 71' Scamp. The lights turn on, but I have to rotate the knob back and forth to get the instrument lights to illuminate (hit or miss). I can turn it all the way to turn on the dome light, just not the brightness feature of the cluster.

If you have one that will work for my application, please let me know how much. I don't need one, but would like a working one for a relatively inexpensive amount of money. I can take a picture of what I have if it will help, or if you know of a way to repair my current switch, I'd take that advice too.

I will pay in advance to a respected member, set up an ebay auction, or utilize a 3rd party broker system with a respected member. Please let me know what works.

Thanks,
-Travis-