Dead Worlds can still be included. Also, with The Judgement of Carrion being a Space Hulk, you'd need to explain how that came about. Space Hulks are often full of Aliens, possibly Daemons as well, or humans of previous times who have gone mad. Even Orks who are the most popular utilizers of Space Hulks often don't even clear the whole Hulk since they want a decent fight to entertain themselves on the journey through the Warp. So you may have to be creative with it.