may be a bit too late but ....
in the polish book on the class VII they are some nice plans of the VII F.
you can download from the site
http://www.okretywojenne.pl/ow/download/?aid=18
or
http://www.okretywojenne.pl/ow/download ... php?did=92
and open the plans of the number 21. the download is legal being the official site of the polish review Okrety Wojenne
ciao peppe