Phoenix Cassions & Pierheads

Hello from Canada
I wondered if any of the forum members have any information as to the disposition of all the individual Phoenix cassions that were fabricated and deployed at both harbours. Ideally I'm typically looking for decent quality maps, drawings or layouts that depict the individual cassion number as it was deployed and disposition after the harbours were shut down. Obviously some were damaged in the storm, and sunk, and some other deployed in the Netherlands after the war.
Google searches have yielded some pictures of various maps, with the block numbers, but reading them is a challenge. Even some of the books don't get down to the level of detail I'm interested in. Similar ask of the various Pierheads that were deployed.
I know that Kew appears to have a treasure trove of data, and I'm hoping from other threads that others have inquired and had some success and be willing to share.
Thanks in advance.