The provisions of sections 441 and 442 of this title, authorizing the assignment under certain conditions of homesteads within reclamation projects, and of subchapter XIV of this chapter, authorizing under certain conditions the issuance of patents on reclamation entries, and for other purposes, are hereby extended and made applicable to lands within the Flathead irrigation project, in the former Flathead Indian Reservation, Montana, but such lands shall otherwise be subject to the provisions of the Act of Congress approved April 23, 1904 (Thirty-third Statutes at Large, page 302), as amended by the Act of Congress approved May 29, 1908 (Thirty-fifth Statutes at Large, page 448): Provided, That the lien reserved to the United States on the land patented, as provided for in section 542 of this title, shall include all sums due or to become due to the United States on account of the Indian price of such land.