I think there needs to be a form on Chorus & Enable's website to file their equipment being for sale. This is the second/third one I've come across in recent years.
There is also one on Facebook Marketplace:
and Enable Fibre one on FB too:
and a listing on Facebook marketplace with two ONT power supplies (including the giant sticker saying "DO NOT REMOVE" 🙄).
What a mouthful in today's shopping!