I changed my speedo cluster today (upgraded from the crappy standard with only speedo and fuel gauge to one with revometer and temp)

I know to get rid of this flashing the car should be proxy aligned but i was wondering could i just reprogram a chip on the new cluster to "pair" it up to my car with the correct mileage? or maybe just swap the eeprom

If not anyone know a good place to get it proxy aligned in kent and not FIAT!