roofbox on a model y

Hi all.

I've just ordered a model y and I'm looking how to get 'my roofbox on it . I assumed it would just be a case of buying new feet for my existing roofbars, although it looks like ill need a compete new roof rack like inthe attached photo. I'm wondering if my roofbox will fit on the roofrack though as the the bars look curved and the bottom of the roofbox is flat? Does anyone here put a roofbox on their model y?

Thanks