Does anyone know how to hair swap?

Posted in Custom Workstation

Long story short, I would like to learn how to swap hair on two heads to allow for more options. (Im planning to buy two sota Ken masters figures, which would have two heads each: short hair, normal face and long hair, angry face) If this goal is accomplished, I could have two additional alternate heads. (short hair, angry and long hair normal)

Any advice?

For those unsure of what I mean, refer to vintage.toystobasco's Terry bogard custom which uses Ken head and Vega hair.