Within the area designated for addition to such battlefield under section 428k of this title, the Secretary is authorized to acquire non-Federal lands and interests in lands by purchase, by donation, by purchase with donated funds, or in such other manner and by such means as he may deem to be in the public interest, except that the Surrender House and land upon which it is situated shall be acquired only by donation or by purchase with donated funds. Administrative jurisdiction and control over lands administered by the Corps of Engineers, Department of the Army, above contour elevation 369 and which, under authority of section 428k of this title, are designated for inclusion in the battlefield, shall, upon agreement of the administering agency, be transferred to the Secretary of the Interior without a transfer of funds.