As an alternative to the formation of a subsidiary capital stock state association pursuant to the provisions of sections 16 through 24 of this act, an organizing mutual state association which has established a mutual state association holding company pursuant to sections 7 through 15 of this act may, in accordance with a plan approved by the commissioner, convert to a capital stock state association pursuant to the provisions of P.L. 1974, c.137 (C.17:12B-244 et seq.), except that:
N.J.S. § 17:12B-317