SMP 300 dials?

Hey everyone I have a ZF SMP300.

I am looking to swap in a genuine dial as I think it’s one of the main weak points of the SMP 300 white dial reps in general.

Anyone know where a genuine dial can be sourced from? I’m looking for the white dial- I’ve searched around online and not really getting any results for it and I want to also make sure it’ll be a genuine dial and not a fake one.