I absolutely love my Retrax Pro. It does take up some room in the front of the bed but the fact that you can lock it in place at any position (Not just every 12 inches like most) plus the security is worth it for me. However, if you plan on a set up similar to mine with bike racks then its not as user friendly as say a Roll n Lock. I dont have the racks on the truck all the time but usually when I am carrying bikes and/or Skybox the bed is full too. I have been dealing with it on my 14 GMC and will likely go with Retrax again anyway when my Raptor gets here sometime in May.
That looks like a good setup.
Can those rails support a roof top tent?
does the retrax open and close easily if the racks are installed?