The unified district shall be legal successor to all of the rights, powers and authorities vested in boards of disorganized districts of the unified district except as is otherwise provided in any of the school unification acts. This provision shall be construed, but not by way of limitation, as being particularly applicable to powers and authorities with respect to bequests, legacies, trusts, and property or interest in property of any kind whatsoever. Any bequest, legacy, trust or donation may be placed in a separate fund of the district and if placed in such fund the same shall be exempt from budget law requirements and shall be used in compliance with the wishes of the donor as nearly as may be.