(b)
In addition to any amounts authorized to be appropriated under subsection (a) of this section, there are authorized to be appropriated for fiscal years beginning on or after October 1, 1979, for the acquisition of lands and interests in lands under this subchapter—
(1)
from the Land and Water Conservation Fund (established under the Land and Water Conservation Fund Act of 1965 [16 U.S.C. 460l–4 et seq.]) not to exceed $5,000,000, and
(2)
from any other sources an amount not to exceed the sum of
(B)
an amount equal to the amount deposited in the Treasury under section
460y–4
(3)(B) of this title after August 20, 1978,
such sums to remain available until expended.