I just did the shock nut last week. Its extremely simple, if you have an extra pair of hands and a pry bar u can simply remove the top shock nut, push down on the shock without removing it, remove the bushing on the inside and simply slip the nut from inside the shock housing, then put back the bushing. Offcourse its easier said than done, I had it done at a local mechanic and they did it this way.
offcourse it wouldve been much easier to do it the Hunner way (but they decided to do it their own and I didnt complain as long as i got the same end result)
Anyway, expect the upper control arm to tap on the metal stop on extreme unloading of the front end, like in high speed terrain for example, but it wont be as much as if u had bilsteins on.