CAn you mix and match body kits? i wanted to get the side skirts and rear bumper of one and the front of another?

my main concern is will it all be the same distance from the ground?

like, i know when you add a body kit, it is a shorter distance from the ground than your stock one but if i change the front bumper of the kit to another front bumper, will they level with teh side skirts?

Yes. And yes they all vary from height differences...but most aftermarket fronts are the same clearance, if not a lil lower than sides. (aftermarket or stock).