This message was posted on behalf of Intel Corporation
Hi lautbach23: Thank you very much for contacting the Intel® communities. We will do our best to try to assist you with this matter.
In this case the best thing to do will be to get in contact directly with the Intel support for Germany in order to confirm if they can sed you the back plate for the cooling solution:
EMEA contact information: https://www.intel.com/content/www/us/en/support/contact-support/emea-contact.html
Any further questions, please let me know.