2004 BA XR6 window & door seals etc

[Fee]

Hi all
Looking for help please. Need to replace my door seals & want to do all at the same time - unfortunately I’m at a loss as to where I can purchase replacement seals.
I also need to replace both interior rear door arm rests (handles) as they have just snapped off when my son was closing the doors (no he’s not the hulk 😁) - do I need to replace the whole door card or can the arm rests be replaced on their own? And any ideas on where to purchase these? I have tried numerous sites with no success.
Many thanks 😊