Mancini sells the front leaf spring bracket that has two mounting positions. I am not sure if it has a stock height / lower mounting hole or a stock height / lifted mounting hole. I have the brackets but with their springs too and it rides pretty high now.
I have had mancini rear springs on my car for the past 6 months. No problems with them and they gave my car a nice stance again. I would also recommend you get new shackles and both sets of leaf spring brackets.