Cheapo generic temperature gauge with a WIRE

Hello fellows:

The temperature gauge on my '68 Satellite (and the fuel gauge) are dead; pretty sure I have a dead voltage reducer on the back of the instrument cluster.

That said, I still want to do some test runs without tearing into the cluster, and would rather hook up a temperature gauge to the sender and a ground.

Though I have a pile of old gauges in the shed, and it turns out my only temp gauge has a fixed copper line from the gauge all the way to a built-on sender. I'd rather not start splicing hoses or putting tees into the intake to adapt it - I'd rather be able to wire the factory sender up and go.

This said, I'm looking for any old gauge that works and will allow me to do a simple three-wire connection (sender/ground/switched power) to get it working.

PM if you have something.

-Kurt