The chancery court, or chancellor in vacation, shall order the sale of the property, real and personal, in the same manner and on the same terms as such property of intestate decedents is sold, and like proceedings shall be had as far as applicable. It shall not be lawful for a trustee to become the purchaser of any property sold by him in that capacity, or by his cotrustees, either directly or indirectly, or to act as agent of any other person in making such purchase; and all purchases in violation of this provision shall be void.