EDIT: Is this a DESFire EV1?! I assume so in this comment, but I have no idea haha.
The cards can not be cloned, they are secure.
At least they should be, but idk.
Why is there a EV2 version if EV 1 was secure? If you had a DESFire EV1 that you can overwrite the ID of and EV1’s are really broken, you might have a chance to convert it… nah, unlikely.
If it’s just the UID it checks, maybe you could try a flexM1 and set the beggining of your ID as ID?
MAYBE they just check the first 4 byte of any NFC tag to be compatible to most card types?
You could get a flexDF(2) and see if you can enroll it with the help of whoever control your room keys…
This should help you with trying to enroll your implant!