Migrating Mikrotik RB952Ui-5ac2nD to ath79

Hi there
Im am using since some time the RB952 with a custom build and updated it successfully to v19.07.8
However I feel unable myself without support to migrate it from ar71xx to ath79 to continue using v21.02 ...
Is there a chance to get this product to ath79 as well?
Hardware ist perfect, I didn't find anything equivalent running on the new v21.02 release..