I agree with jtilley. I have the book, King George V Class Battleships by Roger Chesneau. It has some history and a nice picture or two of H.M.S. Howe in it. There is also some fine information on the other 4 ships of the class, including reviews of the model kits available. I would also recommend another book, also called King George V Class Battleships by V.E. Tarrant. There are some pics and useful information in that as well.
If you are going to convert the Tamiya 1/350 King George V kit into H.M.S Howe, then I have to highly recommend that you purchase the Ultimate King George V class battleships PE set from White Ensign Models. I recently built the H.M.S Prince of Wales using it, and it is a beautiful set. It contains all the pieces to build the 1/350 King George V kit to any of the 5 ships of the class. WEM may also be able to help you with the colors and camo patterns as the Anson and Howe had some interesting late war schemes. Their colourcoats paints are also excellent.
Hope that helps some. Good luck !
Ted