Oh, the GB Gato will be the 1/144 like yours, with the White Ensign PE and Nautilus guns (he sold me another 20mm) to be done as SS238 on her 3rd patrol.
The big one will also be SS238, but as she appeared on leaving Midway on her last patrol. Will have an identifier plague with name, hull # and "on eternal patrol". Might add her into the GB, depending on when the first one is done and how long it runs.