Tom,
You are doing an excellent job of restoration on your Bodeo revolver, part are very difficult to find and often you have to make them.
You can make 10.35mm from 44 maganum brass, cut to .890 inch length and use a 303 sizing die to provide a slight taper. I did make some cartridges from 45 auto rim years ago
too. I used some 44-40 lead bullets worked down to .422 inch. My revolver is very old and was advised to use black powder only, you might be able to use light loads of Unique
powder, Robert