dash pad

I suppose you are referring to the inst' panel circuit board. There are 2 of them on the rally panel. Regardless, In most cases they are repairable.
I've seen and installed the reproductions. They do look pretty. It will be about 40 years before anyone can say those are better than OEM boards.
The bezel has both clear and colored lenses. Each requires a technique in their R&R.
We'll reserve all that for another day, another thread.
What else I would do... I would replace the seals at both heater case to cowl and fresh air vent to cowl. I would reseal both wiper pivots and replace the plastic bushings in wiper linkage. Grease speedometer cable. Beyond those common problems, just take a good long look for pther issues.
I consider the rally inst' panel to be the most fragile of them. Anyone who has done it can tell you its the most difficult to R&R. That's why it pays to do everything we can to insure it doesn't need to come out again for a very long time.