As an alternative to the formation of a subsidiary capital stock savings bank pursuant to the provisions of sections 16 through 24 of this act, an organizing mutual savings bank which has established a mutual savings bank 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 savings bank pursuant to the provisions of P.L. 1982, c. 9 (C. 17:9A-8.1 et seq.), except that:
N.J.S. § 17:9A-407