No sorry . They seem to have been rather overlooked by history and the modeling fraternity. They were all built at Barrow in Furness which does give some pointers for research.
A "History of Barrow Built Submarines" by Hool and Nutter does not give much more than the Vickers Brochure. It does though show a better photo with a reference (Barrow Museum Service CAT001).
So an enquiry of the Dock Museum, Barrow (they are on the web) may give a better copy.
Drawings?? Maybe the Barrow Museum Service, BAE Systems (Barrow) or Greenwich Maritime Museum.
None of them very easy or cheap, I'm afraid. For my R Class I got drawings from Greenwich.
The "Observers Book of Royal Naval Submarines 1901-1982" by Cocker is rather more use (a good book this one) with a proper (small!) drawing ( a longitudinal and a cross section) with some better photos.
Any one else got drawings or sources of information?