Nothing contained in this chapter shall be construed to prohibit an insurer from accepting or acquiring corporate stock or evidences of indebtedness or other securities or property:
If any such stock, securities or property so received shall be of a kind or in an amount not otherwise allowable as an investment by this chapter, they shall be disposed of within 5 years from the time of their acquisition, unless the commissioner shall, for good cause shown, allow further time for the disposal thereof and then within the time so allowed.
N.J.S. § 17B:20-3