I've been toying around with doing my 03 for a while now. I was thinking of running a hp44 so I could run my stock rear axle. You'll need a steering box, I personally like the late 70's ford half ton boxes for the way they mount outside the frame and have a forward facing pitman arm.
I'd probably catch a lot of crap for running half ton axles but my hemi won't pull enough to run tons with big tires and I'm not gonna wheel it anyway. If you run a link front suspension instead of leaves and the steering box outside the frame your drag link would probably be long and flat enough to not need hi-steer as long as you dont want a skyscraper.