Brackets for 2011 Keystone Outback 312BH outdoor kitchen

I’ve been to every trailer dealer and parts store near me as well as auto parts stores and hardware stores. The ball joint broke off our brackets and when trying to fix we have miss placed two of the brackets due to being unable to find brackets that fit where can I get replacement brackets for my outdoor kitchen? Due to the layout of the door there are no brackets with divets anywhere…. This has been going on for over a year and I am so frustrated and just want to be able to use our outdoor kitchen without worrying about the door falling on us. Here is a picture of what we need. Thank you