U.S. Walking Liberty Half Dollar Coins

I am working on my Walking Liberty collection. I have focusing on short set (for now) (1941-1947) but would be interested in earlier coins for the category. I have some duplicates and wanted to see if someone might consider trades/swaps.

My coins to swap:
1938-D AU ungraded (key date)
1940-S AU ungraded
1941 AU ungraded
1943 AU ungraded
1945 NGC AU58 OR AU ungraded
1945-D AU ungraded
1945-S AU ungraded
1946-D AU ungraded

Note: I just acquired the ungraded AU coins (above) from a local coin dealer and he picked out his best ungraded for me. He thinks they are all MS 60 and higher, and committed to buyback any that didn't get at least that grade.

To complete my short set I need the following (at least MS65):
1942-D
1942-S
1943-D
1944

Thanks!
Steve