There were 22 total yellow R models built in 2017. 2 of those were built with black roofs and no stripes. It is possible this could be a 1 of 1 if the other two base models were the ones built with black roofs and no stripes, but no way that I know of to confirm.
I voted for the Kona Blue with white stripes. Ironically, I just traded in my 18 non-R in that exact color combo for a 19 R performance blue, white stripes and black roof. Both blues are absolutely stunning in person. I just personally prefer the white stripes versus the black because it shows...