2006 530xi

The person who owned my car before me has done a butcher job on the rear tailgate wires. So Far I was able to fix 2 of the harnesses and now I am trying to repair the last one that goes to the diversity amp.

I have 2 Questions.

!. Does anyone know If I can get the connectors individually? . Its hard to navigate through Realoem. I rather replace the connectors instead of splice in.
2. Also, Does anyone know where I can get the Little rusted spacer between the right hinge and the Glass section. I have not been able to find it. Do I need to fabricate it?