If you plan on keeping your sammie and your kidneys go with a yj type spring kit and be done with it, trail tough sells a real nice kit and will sell you new yj six pack springs for 60.00 ea. the main leaf on them is at least twice the thickness of a four or five pack spring so you git rid of most of your axel wrap and don't have to worrie about breaking them on the trail, the perches you want should not be tall at all, the closer to the axel tube the better, and the z bar thing for get that also and get the over the knuckle type, sky also has a nice kit and products for what you need, just from my trial and errors building a couple of sammies.