(a) Except as provided in (b) of this section, AS 13.06.068, AS 13.12.506, and 13.12.513, a will must be

1. (1) in writing;
2. (2) signed by the testator or in the testator's name by another individual in the testator's conscious presence and by the testator's direction; and
3. (3) signed by at least two individuals, each of whom signs within a reasonable time after the witness witnesses either the signing of the will as described in (2) of this subsection or the testator's acknowledgment of that signature or the will.