Roof box suitable for Rhino Rack

[Phil1]

Hi all, I've recently purchased my first VW T6 2017 and are in the process of converting into a Kombi style dayvan. It came with a Rhino roof rack fitted, not the prettiest to look at however will be really useful for me for the next year or so (house refurb). Do you know if there are any roof boxes that will fit ontop of it please? Additionally, at somepoint I will sell it and go with a slimmer roof bar look, would whichever roof box I get, also fit on this?

Edit: It looks similar to the Rhino KammRack style, full length with the roller at the rear.

Any help appreciated.
Thanks