I have replacement keys for Magic Keyboard available. These are removed from a keyboard that I just needed the Touch ID sensor from.

It is an AZERTY keyboard so some keys are non-standard. See the photo for what is available. Let me know how many & which keys you want, and I can confirm a final price.

$5 for one key
$10 for four keys
$20 for ten keys
$40 for all keys
Send a message and I can give an invoice for the final price for your specific order.