Stack Hacks?

I could not find the Dead Island Mod installer tutorial so my apologies if you get this question a lot. I can get the " Left Hand of Sethioz" mod to work, but I am unsure as to how I go about adding the "infinite ammo" "Cyborg ninja" and about every other mod you have for the game. Do I make multiple data0.pak files? or overwrite the hack with another?
Thanks for your time.
Kammath.
Thanks for your time.
Kammath.