I thought about that too. and I'v made sure I can lower it without allignment problems. the Ranger frame is 14" from the ground at stock ride height.. 4" lowering can be achieved while being allignable with DJM dream beams and splash/ lowering springs. it can go a little farther with +-4* camber bushings. but 10" at the frame would be adaquate for me. I also plan on a smaller tire than the 215-70-14 the Rangers came with...
I checked with my local ( good ) tire and allignment shop, and he can line it up

as far as the other measurements.. the frame width is 29" at the front ( current frame 27" ) and the track width is 58".. I will have to cut the cab for the wider frame, but it'll actually fit/ look better as it is 48" wide