Hi,
A set of Norman A Ough plans for the Warspite at 1/192 scale were available from David MacGregor Plans, 12 Upper Oldfield Park, Bath, BA2 3JZ. However, Mr Macgregor died last year but I think his family have carried on selling the range. If you can get or see a copy of the latest Marine Modelling, they may be advertising in there. Sorry, I don't receive that publication but maybe George can help.
There is also the following model hull available from Fleetscale :
H.M.S. Warspite 1/128th Queen Elizabeth Class WW2 Hull + Drawing L 60" W 10" £117.50 .
Try the following link and click on products to take you to the page
http://www.fleetscale.co.uk/system/index.html
Good luck
Chris