2003 XJR V6 (X350) rear door lock issue

[Flightengineer]

 Hi tried to open door from inside was ok before however on this occasion pulled a little hard and something let go cracked the small chrome plastic trim that surrunds the handle assembly now the interior door handle is sitting about half way out, the lock button is in the correct position the handle will not go back in,the only
way to open the door is hold out the interior handle pull out the lock button and the outside handle at the same time. The interior handle moves but does not seem to do anything and i notice that the black plastic assembly is cracked I have got a new one on the way but think i might need some sort of cable as well. I cant find a pic of the how it all works before getting the door card off, middle of winter here and no garage. Many thanks Stewart