Since we are bumping an old thread, my gut says an 883/890 combo will end up with a front suspension that is pretty significantly stiffer than the rear. As mentioned above, even with only a front bumper and winch, with only 890s out back it will likely show a good bit of reverse rake with even modest loads.
I would probably expect that, on the soft side, an 881 / 890 combo with spacers up front would get you an even ride with about 2.25-2.5" of lift up front after the weight is added.
Alternatively, pairing the 883s with 891s would give you a firmer and more consistent 3" of lift.