Folks,
now that I'm more confident that the car will continue to work I have decided to invest in roof rails. Per 4sallypat's advice (which was awesome), I went to Land Rover Rocklin, picked up roof rails and installed them myself.
Then I went to REI and TheRackSpot to get cross bars and they did not have Rolas. So I had to look at other brands. After we dug in, they were very uncomfortable selling me anything because the fit guides online (Yakima, Thule, Inno, Rhino) all say the Disco Sport is not supported. The retailers tell me this means there is no warranty on any of these parts.
So I defaulted to coming back here, and trying to order 4sallypat's exact parts on Amazon. But something they told me stuck - the fact that the disco roof rails and very low profile, and that most roof racks will have nails, attachments get very close to the roof.
What they're saying is that you go over a bump and the ski bindings will punch into the roof and damage it.
From your pictures it looks the rolas are very low profile (which is gorgeous), but also means that the bindings are dangerously close to the pano roof. So just a small bump at highway speeds could break the roof?
The ONLY approved parts I could find apart from the Land Rover accessories was from Whispbar in the UK.
http://www.whispbar.co.uk/products/4/flush-bar. But nobody REI or RackSpot don't seem to be able to sell me this product! They want me to convert it to S46, S45 etc. I don't know how to do that.
One way is to buy and try and return one by one. Anyone with prior experience please share so I can save some time on this...?