Go to the CASTPIC'S website: http://www.castpics.net/
Then on the menu to the left click on "MEMBER PRODUCTS". There you will find:
SwedeNelson (NOE Boolit moulds) http://noebulletmolds.com
The above are offering moulds outside of Group Buy quantity requirements, or also available individually. Many are previous Group Buys so if you missed one here might be your second chance.