have you figured out how to interface the wiring harnesses of the two cars? that alone will be a nightmare of labor.
Yea, it'll be a lot of work just wiring, but I know I'm going to have to trace all the wires from the cluster....hopefully, most of them go into the engine bay, I know a few will come from the OBC....which will probably become useless.
BMW E34 1992 525i Touring
RIP Touring...probably never going to drive you again...