I have rails already, but I think you're definitely headed in the right direction
Rails / Steps in one is basically what you are creating by having a tube that goes further out.
I'd also like to see sliders that are really meant to be slid on. I see a lot of sliders that have the supporting beams even-with or below the actual sliding bar. I'm picturing the edge of a rock getting in between the rail and the support and sheering it right off. (I personally got a stump stuck in that pocket). I'd like to see the sliding surface be below the support beam, and possibly extra support underneath so that it acts more like a skid even.
_________________
Jeff 2005 Jeep Liberty Renegade
4x4, 6spd, Leather, Sunroof, trak-loc, skids/rails, hitch+shackle, hooks, Alpine/iPod, Thule, GPS, CB, Frankenlifted w/ 31" MTRs
Photos Cardomain