And then he gets caught and points his finger at you
You are repeating what I already pointed out:
The fly in this ointment is that ironclad anonymity against the national security agencies is very dubious. How can you control when the person you bought the ranch from screws up his anonymity and TPTB rubber hose him to force him to reveal the crypto-currency was obtained from you.
Instead I suggest a plausible different strategy...