pins on the back of the gauge cluster

Pictures of the damage would help. I have repaired these, it simply depends on the condition of the printed circuit, and what's left of the pins.

You might be able to, say, find a "junyard dog" of a cluster, that's had a lot of weather damage, but still has enough of the board to use, or at least enough to repair what you have

A lot depends on your soldering skills.............