Swinger help

Hey Everyone,
I am gathering parts for my build (73 Swinger). I have a few questions. I am needing more clearance. First, Is there a good non-power rack unit can I use? A Dakota or maybe an M body? If I do this retro, will I have to change the steering to a front steer by reversing the spindles from right to left? Would that work? Additionally, woud a rear from a V-8 Dakota or an M body be stronger that a Small 7 1/4 rear (I think thats what is is I do know that it is very small- the car had a slant 6) ? What about a rear from an Explorer or Mountaineer? They seem to be about the same width. Has anyone tried this?
Brian