Used Cabin Cruisers C.H. Lightoller, An Officer On The "Titanic" Had A Cabin Cruiser Called "Sundowner"? Where Is It Now?

C.H. Lightoller, an officer on the "Titanic" had a cabin cruiser called "Sundowner"? Where is it now? - used cabin cruisers

It was used in the 30s and 40, and in fact became Dunkirk during the first half of World War II British troops took part in the evacuation fleet. Who knows if it still exists, or has now? We hope a browser from the United Kingdom and have no response information. I am in Tucson, Arizona, across the lagoon, so no details here. Thank you!