Wanted - topbox reinforcement plate R1200GS Rallye

[Jacodt24]

Good day all

I want to fit a topbox on my R1200GS Rallye but I am afraid that the standard plastic frame might brake. Does anyone perhaps have a reinforcement plate or a non plastic tail peace that will fit the bike.
Below an image of what i am looking for or something similar. I am open to ideas....

Regards
Jaco

 

[Koet]

 

[zebra]

 

[Koet]

 

[Tr0jan]

 

[Jacodt24]