Hi,
I've just made the same sort of change myself, from a 2016 1000 to the new 1050xt.
I know the plate is the same but not sure if the support rack is as I traded mine with it on.
You will need the following
Givi SR3117 Rear Carrier Suzuki DL1050 V Strom 2020 on
Givi M7 Monokey Plate
I got them delivered from Branded Biker and found them very good.
Cheers Ken