I put Givi system ( rail n top box) . I think Givi made a nicer look rail then Shad.
Are you in the USA or Europe or
The Premium model is not (yet) in the USA. We get only the Euro 4 Standard version in the USA. Mostly unchanged from when it first came across the pond in 2021... though slightly upgraded from when the AK was first introduced in 2017 in other countries.
I have a Givi aluminum mounting plate with the Givi adapter rack on my 2022 Standard version. Though I am going without a top case for now since dry bags are all I need at this time.