Common failure on the '96 Sebring Convertible was the gauge cluster. Solder joints on the back of the circuit board will break and the cluster won't work right. Some folks have had luck fixing them, others just replace them.
The good news is that the cluster in your car is the same as those in a '95-00 Dodge Stratus/Chrysler Cirrus and a '96-00 Plymouth Breeze - so you have a good stock to choose from. I've paid as little at $25 for a cluster - takes 10-20 minutes to remove it. Pop the bezel from around the radio/HVAC controls, remove the 4 screws. Pop the fuse panel off the driver's side and remove the screw(s). Pull on the whole plastic shroud and it'll pop right off. Then you can remove the screws holding the cluster in, unplug the cluster, and done. Replacement is plug and play.
The seat belts are another issue - not sure how repairable/replaceable those are since they are built into the seats.
The good news is that the cluster in your car is the same as those in a '95-00 Dodge Stratus/Chrysler Cirrus and a '96-00 Plymouth Breeze - so you have a good stock to choose from. I've paid as little at $25 for a cluster - takes 10-20 minutes to remove it. Pop the bezel from around the radio/HVAC controls, remove the 4 screws. Pop the fuse panel off the driver's side and remove the screw(s). Pull on the whole plastic shroud and it'll pop right off. Then you can remove the screws holding the cluster in, unplug the cluster, and done. Replacement is plug and play.
The seat belts are another issue - not sure how repairable/replaceable those are since they are built into the seats.