Thats what the winners at the table did, Walmarts, Nikes, Foxconns etc. have done. The only thing they do is have some nominal QC team and outsource all the stinky stuff to sub-contractors. In US that is how you hire "illegals/undocumented" by Big Ag or Big Logistic. The #4/ to you list, have an structure for "plausible deniability".

If you go deep in the supply chain if you will find all the above.

I am not condoning his advice, nor do I practice these. But reality is not that pretty.