You have a valid and polite request. But... do you really want to get advice from perfect strangers at some Internet forum in a case related to your privacy? Maybe this forum contains a bit less evilness than Amazon and a bit more knowledge than you, but even smart good people sometimes make mistakes in fighting the Big Brother and leave unnoticed holes. How are you intending to check the completeness of provided solution? :trollface:
Though, of course, you can just buy an e-reader without Wi-Fi and 3G and avoid the problem.