Nope. Sorry, they are different modules, you can only have them in separare directories in the game folder and choose to play one at the time. Plus the clan quest is only in english and based on the english version of the unofficial patch, putting it on a french version of the UP not only you can encounter on countless problems due to mix ups between the two modules but also have some of the vanilla dialogs and texts replaced in english (without counting the new ones)
