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...
Okay, now when we are done with that, let's proceed further
How is that essentially different from your ranch in Peru?
Because the purchase of stock can be truly anonymous wherein:
1. The company directors aren't required to know who the stockholders are. Nevada, Wyoming and Delaware offer such.
2. The company directors might know they have deal with you to give you a job, but they don't know how much you personally invested. You just promised them to bring in a lot of investors if they hired you.
You might just instead convert a portion of your anonymous crypto-currency to fiat and purchase assets. If your tax residence doesn't tax you on capital gains, then you have nothing to report. The above strategy was to obfuscate the connection between how much crypto-currency you converted to fiat and which addresses were converted
I don't see much sense in any of these points if it still boils down to converting a portion of your stash of bitcoins to fiat and then purchasing stocks. It is not that the purchase of stock can or cannot be truly anonymous itself, it is more about converting to fiat which is not anonymous altogether (unless you trade your bitcoins directly for cash), even if you don't have to report your capital gains. Really, why would you have to report anything if you expected to have remained anonymous till then in the first place? So it doesn't actually matter how anonymous is what you are going to do next with the fiat you received from the conversion (namely, purchase stocks) since you are no longer anonymous after that conversion...
In other words, the chain is not stronger than its weakest link