987 gen 2 door mirror glass

[Babw]

Can anyone help source a wing mirror glass, drivers side aspherical and dimmable for a 987.2? It is the same part as for a 997 gen 2.

Porsche are unsure if they can source one due to supply chain issues and if possible I'd like to know if there's an alternative/OEM equivalent manufacturer at a lower price point before spending £500+ on a single mirror glass.

Thanks in advance.