The guys who say you MUST have a Ford HP 60 are usually the hardcore 4x4 guys. Low pinion is no biggie in a pavement pounder. Hell, LOTS of hardcore guys use low pinion pass drop Dodge and Chevy front 60s too, so don't let that be the deciding factor. It would be easier to use a Ford axle, but if you found a Dodge axle for little or nothing it may be fine for you if you don't mind investing some time and effort into it. If you are gonna be fabing your own suspension, you can throw out most of the junk Dodge suspension talk too.
Travis..