Repinning instrument cluster electrical connector

[Rattler12]

I am thinking of changing from an idiot light cluster to a gauged cluster. I have a gauged cluster on hand. Some of the individual connections  are the same with each ie gas gauge sending unit wire, instrument panel lights hot, high beam indicator but others are different ie left and right blinker lights, oil sender and H2O sender. Someone mentioned repining the connector vs cut and splice.  Procedures to do so? Simple or difficult?

[Irish_Alley]

THIS should help