knowing how you drive, I would recommend trying to find some CUCV military axles, get you to 4.56 plus detroit in the back. I'm pretty sure you won't have much issue sticking with 15" rims if you desire.
I got into my H1's pretty cheap otherwise.
I'm not 100% sure how chromo would do in the dana 44's with your driving style... make sure they warranty them against all breakages
what's your current wms to wms right now?