The Secretary, on behalf of the United States, is authorized to accept donations of real and personal property within the areas selected for the park until such time as the aforesaid total of nine thousand five hundred acres shall have been acquired for the park by the United States, and he may also accept donations of funds for the purposes of this section and
section 398 of this title. Notwithstanding the acreage limitations and boundary designations contained in this section, the Secretary is authorized to accept through donation, or purchase from a willing seller, the real and personal property located on Lots 251–252 Estate Contant Enighed, Parcels 86B and 86AA Cruz Bay Quarter;