brake dive is another one of those urban legends. the axel transitions backwards when the spings compress, but only aobut and inch. The calmini kit keeps the castor and camber angles the same as stock so there is no issues with that using the calmini kit. If you wish to eliminate the front "fangs" then you can do a shackle reverse without the tower and mount the spring to the frame. This will require you to re-weld the perch or put in a shim so that the castor angle is optimal. This gives you an insane approach angle and the benefits of a shackle reverse suspension when crawling over rocks. This type of suspension requires some knowledge and some fabrication skills to get it dialed in correctly. If you do a spring over axel lift, make sure you have a panhard bar to keep the axel centered under the vehicle. The shackle reverse doesn't require a panhard, but using a bolt on has its limitations if you plan on doing some REAL rock crawling.
please take into consideration... I posted this while intoxicated so apply the grain of salt where you feel it belongs.