'98 Stratus issues

You're not going to like this answer.
Maybe yes, maybe no. You may be able to use a donor PCM, but it will have to be flashed on the car. That's when your going to get your answer.
When the car powers up, there is a handshake protocol.
The PCM wakes up and searches for the body controller and/or the trans controller. The VIN's must match for the system to work. Some of the PCM's can be re-flashed and the VIN's changed, some the VIN is burned into the PCM and that is that. I don't have a way of telling you if you if you can re-flash or not. But if it can be done, it's going to take a DRBIII and not a generic scan tool.