Go with the Fox, did it several years ago, used the moog cc860 spring and had agile custom valved Fox shocks and it worked out great with adjustable camber inserts.
I am not sure exactly, as my fronts were shot, but if I had to guess......about 2 once they settled in and that is with a 7.3 diesel. At first the adjustable camber inserts were adjusted all the way to the max to get 0° camber, but after 2 weeks or so, I had to re-adjust for the springs "settling in". Very nice smooth ride.