7 Bright Unc. Kennedy half dollars

I purchased a decade of Kennedy half dollars to fill in a lot of my missing dates, however, this purchase left me with 7 duplicates I would like to sell or better option trade for dates I am still needing. They are all BU mint state dates are as follows 2000 P & D, 2001 P & D, 2004 P, 2005 D, and 2006 P. Asking $1.59 each all seven $11.13.

Dates I am in need of are as follows; 1970 D, 1982 D, 1985 P, 1986 D, 1987 P D, 1990P, 1991 P, 1992 P, 1994 D, 1996 P, 1999 P, and the last two 2011 P D.