If you are going to be in mud more than rocks, then I would go with a winch first, especially if you plan to wheel alone for a while. I was with a Rubicon JK with 35s at DP that was stuck with the factory lockers engaged, but his winch pulled him out.
$1600 for a bumper is WAY too much. Find a fab shop or learn to weld. You should be able to make a bumper for that beast for relatively cheap, if you can get access to equipment. I recently heard about 'rent a shop' and 'makerspace' concepts, which, as I was told, allow you to rent access to a facility that is loaded with 'shop' tools, such as those required for metal working. Here is what I found in Atlanta and I've asked them about their metal working capability via email...no response yet:
http://decaturmakers.org/Their website is pretty pathetic, but the concept is pretty damn cool.