One of the best novels of WWII that I know of is "The Cruel Sea" by Nicholas Monsarrat. "this is the story of the British ships Compass Rose and Saltash and of their desparate cat-and-mouse game with Nazi U-boats. First published to great acclaim in 1951, The Cruel Sea remains a classic novel of endurance and daring."
The Compass Rose is a flower class corvette. There was also a British film by the same name made in the 50's. If you can find it watch it!
Besides the Edwards PE sets there are also other 3-D printed parts made by Shapeway and L'arsenal
http://www.larsenal.com/1-144-detail-set-corvette-flower-1941-43-c2x24169438
The Britmodeller forum has a superb build
https://www.britmodeller.com/forums/index.php?/topic/235005424-revell-flower-class-corvette-1144/
Rob