(a) If the applicable assets of the estate are insufficient to pay all claims in full, the personal representative shall make payment in the following order:
(1) Costs and expenses of administration;
(2) Reasonable funeral expenses;
(3) Debts and taxes with preference under federal law;
(4) Debts and taxes with preference under other laws of this state;
(5) All other claims.
(b) No preference shall be given in the payment of any claim over any other claim of the same class, and a claim due and payable shall not be entitled to a preference over claims not due.