If you only need uncensored mod then you can simply download Screwthisnoise's repack (it have uncensored and some other mods), his repack is darker than original game so you might need to change the lighting a little if you dislike that.
The cubemap and extra is only used in studio, you don't need to download them.
	
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The game is pretty old and modder mostly stop working on it so it's hard to find alive mod links, you can find them from various places with google but I think the repack already have decent mods to use.
Except one thing, his repack use compressed files to save HDD space so it take longer to load than original game.