Wow that is one heck of a job you did. That is the look I have been trying to get with the Rola and I don't feel so bad now that I could not figure out an elegant solution - but at the time and effort and esp cost I would have to pay to get the parts machined (I don't have those types of tools) I might just be better off buying the Defender roof rack (which is as wide as and mounts directly in the factory channels). The extra few inches lower that you created with your set up doesn't seem like much but I bet it make a HUGE difference in keeping the center of gravity low (esp with a spare tire on top) and wind drag. Looks great man.