Looks like a great setup that takes advantage of the stock rack. I like it. Please let us know how you like it after some driving time. I'm most interested to hear about wind noise.
As much as I loved having a lightbar on the rack, it was just too noisy, and I want to avoid that issue if I go in this direction.
So wind noise...
I live in SE Illinois. The weather is unpredictable, and windy. I drove around today in the area in stop and go traffic around30-40 MPH as well as roughly 10 miles of highway up to 75mph. It was sunny and about 65 degrees and it was a very windy day; avg with gusts up to 30mph here along the Mississippi river outside of STL.
I say all that for the understanding that, as we all likely know, wind noise is variable, like tire noise. That said, given the above conditions, I'd rate the noise as more than likely a GOBI or Prinsu, but less than a rack with a Yakima basket or cargo box on top. I've had GOBI racks on Wrangler JKs and on 4runners, so I am not new to the noise that comes with them depending on the conditions. I'd say that the noise was very loud and the vehicle handling was a little "sportier" in cross winds going North/South. Driving into the wind (west in my case), the noise was loudest but again, 30mph wind gusts and no wind fairing (yet) so..... Going east at 75mph, the noise barely appreciable above the stock crossbars in those conditions. It was all wind gust noise really....no whistling or howling, or roof rack rattle.
All told, I am satisfied for what it is. I get the wind fairing in the mail this week and will install and provide an update on changes. Again, if we don't have the wind we had today, it'll be oranges to clementines...
I will offer that this setup through amazon, ran me about 200 less than buying direct from RR or Etrailer, or any other site... (including using the Expert Voice discounts). The mounts are very solid and everything is well constructed. I was apprehensive about the Vortex SX100 feet ability to hold well to the stock rails, but they clamp down very solid and I couldn't get it to budge or rattle at all with very violent efforts.
I am satisfied for now and I will likely go to the backbone setup down the road.
Cheers