In addition to the homestead defined in section 47-18-01, the decedent‘s surviving spouse is entitled from the estate to a value, not exceeding fifteen thousand dollars in excess of any security interests therein, in household furniture, automobiles, furnishings, appliances, and personal effects. If there is no surviving spouse, the decedent’s minor children, whom the decedent was obligated to support and children who were in fact being supported by the decedent, are entitled jointly to the same value. If encumbered chattels are selected and the value in excess of security interests, plus that of other exempt property, is less than fifteen thousand dollars, or if there is not fifteen thousand dollars worth of exempt property in the estate, the spouse or such children are entitled to other assets of the estate, if any, to the extent necessary to make up the fifteen thousand dollar value. Rights to exempt property and assets needed to make up a deficiency of exempt property have priority over all claims against the estate, but the right to any assets to make up a deficiency of exempt property abates as necessary to permit earlier payment of the homestead allowance and family allowance. These rights are in addition to any benefit or share passing to the surviving spouse or children by the decedent’s will, unless otherwise provided, by intestate succession, or by way of elective share.