You can export the aldora hair to OBJ and fit it to V4 after re-importing it. If you’re going to invest anything, I’d invest in Generation X and the V4/M4 shapes for Genesis, that way you don’t have to use V4, you can just go with Genesis, which is a far more advanced and all around better figure, and translate any character to it…
Most hair can be used on most figures with little trouble.
Right-click the hair, “Fit Aldora Hair to…”—> None
Right-click the hair again, “Change Aldora Hair Parent…”—> choose Victoria’s head from the list