gas gauge repair or reproduction

Hi guys,
my gas gauge isnt working so I took the back off and can see the tiny wire is broken that wraps around the thin piece of metal. I rigged it back up but works about half the time. the dash is out of the car (as are all the gauges), and i would like to find a replacement or a place that does repairs. any suggestions?
I found an old thread that provided link to a repair shop, but the phone number no longer works

any way thanks for looking.

Charlie