Genestealers and Tyranids for DH2e

Hey everyone,

I am hoping someone knows either where I can find, or perhaps has some homebrew stats for tyranids and genestealers? The DH2e enemies without does not have those factions! Many thanks in advance!

UPDATE: So Mark of the Xenos the deathwatch supplement has Tyranids and Genestealer stats, but it seems to me like they are pretty tough because of the PC's mainly being Space Marines in Deathwatch! I think I am going to use those stats and adjust slightly as needed, but it would still be cool if people have their own homebrew to share