Here are some general information links to the two Star Trek Wikias that have all the info on all Klingon starships. I went ahead and did the relevant category search for Klingon starships, you can take it from there. Unfortunately, they're not really broken down into class, but you should be able to click on a ship and find its class page in the links at the bottom (or just search for the class.)
http://memory-alpha.org/en/wiki/Cate...ngon_starships
http://startrek.wikia.com/wiki/Categ...ngon_starships
More info on Klingon ships:
http://www.ex-astris-scientia.org/sc...ngon_ships.htm
There are a couple Klingon articles here, so I'll post it as well:
http://www.ex-astris-scientia.org/articles.htm (The article on the BOP sizes is probably relevant to what you're doing)
Hardware (studio models, studio CGI models) references can be found here:
http://www.ex-astris-scientia.org/scans.htm
And, of course, schematics:
http://www.shipschematics.net/startrek/klingon.html
http://www.cygnus-x1.net/links/lcars...ints-main2.php
Those pages should give you info on most every Klingon ship in existence, from stuff on the shows to fan fiction and designs. There are probably other sites (some even dedicated entirely to all things Klingon) but that's what
www.google.com is for.
