with moneys from the Rural Development Loan Fund established by section 9812(c)(1) of this title or with funds available (before October 27, 1998) under section 9910(a) of this title (as in effect before October 27, 1998) to an intermediary borrower shall bear interest at a fixed rate equal to the rate of interest that was in effect on the date of issuance for loans made in 1980 with such moneys or such funds if the weighted average rate of interest for all loans made after December 31, 1982, by such intermediary borrower with such moneys or such funds does not exceed the sum of 6 percent and the rate of interest payable under this subsection by such intermediary borrower.