I think I know how to help you. First of all you want to have dies made from the cerrosafe chamber cast and that needs to be done by (dies made) either Huntington or C&H.

As to the brass, Buffalo is the place for brass.

I think it will be a simple process to get that old stalker back on the hunt.

Try these links. If you have anyother problems plese PM me for any more help.
C&H tool&die

Huntington

Buffalo Arms