Where to get Keihin Carb parts?

[Hellikipotter]

Does anyone know where I can get a jet block gasket for a Keihin PWK35 carb?
Mine is leaking and I can't find one.
This one:

Sourced from here
https://www.jetsrus.com/individual_parts/021_532_su.html
(I know I can get it from the above website but I'm definitely not importing a R50 gasket)

 

[Ou Krokkedil]

 

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[Bill the Bong]