Sounds like someone is a sucker for punishment!
Why on earth would you even attempt this? The entire point being the counterfeit parts have no standards. You probably couldn't build the same amplifier twice unless you bought a ton of parts. What would the parts list look like?
I think you are further ahead buying lottery tickets, and if you win you buy yourself an amplifier (but not before!).
I know where you're coming from. Sometimes when a committee chooses the "cheap" option, they discover the price far exceeds what they bargained for. Now the fab is long distance outside of the country, and they likely speak a different language. That is an arrangement for disaster. Oops!
Now these semiconductor companies need to regenerate their own fabs again, and generate a workforce with the needed skill sets. Sounds like fun to me.