Wanted: Wanted: HP Spectre x360 13-4????? series laptop for keyboard

I have an HP Spectre x360 13-4110ca. The down arrow keycap is broken on it, so I need a replacement down arrow keycap. However none of the online vendors that sell keycaps have this keycap in stock, and Amazon doesn't sell a replacement keyboard for this laptop.

If you have an HP Spectre x360 13-4110ca, or 13-4101dx, or probably any 13-41???? or 13-40???? that isn't working, let me know before you throw it out.