Does anyone know where I can get hold of a metal stock bracket for my ROTJ EE3?

I currently have a (Draven Models?) EE-3 but the bracket is cable reinforced resin and it's cracked which makes the blaster very wobbly and odd - I don't want to try to repair this as it will just break again so I would like to replace the whole bracket with a metal one to ake it much more rigid and allow it to stand up to the stresses of trooping.

Can anyone point me in the right direction here?