If they are so sure they can access it I'd sell them the USB drive for 3501 ₿
If you had 7002 Bitcoin locked on an encrypted USB that would erase the contents after too many failed attempts, would you make a deal with a team of hackers to try and crack it or would you hold that worthless yet priceless device and hope that something comes along in the future that could unlock it?
https://www.wired.com/story/unciphered-ironkey-password-cracking-bitcoin/