Go back to some of the earlier threads But first do some homework in your application. Body roll really screws with camber. If you don't KNOW then look at several pictures to estimate what body roll to expect. To START, I have been starting the drawing with that frame body roll. Not parallel to the bottom of the drawing. Then I try to set the arm mounts so that the wheel will almost never go into positive "camber" to the ground. Usually on droop, you can have a couple degrees positive to the ground as there is not much tire traction anyways. It seems good if you can have 2-3* negative "camber to the ground at bump. Note that this can probably relate to maybe 9* negative at bump with the frame parallel to ground. And that is only the beginning for a IFS. Check out some of the more resent threads on IFS on Pirate4x4.com. Body roll is more extreme than desert so talked about alot. And more recently how it relates while turning.
Common in desert is adding a little kick up in the front of the bottom arm to absorb hits and more kick up in the top arm to help camber and caster gain without dealing so much with arm lengths.. This also helps the caster and camber gain during turning. There are other ways to accomplish that, but a good start to understand the principle.
Others may have their own way that works.