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Is it easy to add another level of privacy to this nastigram email?

If a friend sends a nastigram email to her own employer that she doesn't wish to be traced, assuming she writes it so that social engineering doesn't catch her through her "content", is there anything else I should recommend she do than the following to ensure a reasonable level of privacy (using Windows XP)?

Download and install macmakeup
formatting link
macmakeup to change your ethernet id for your wireless card

Download and install operator
formatting link
operator to connect to the web hiding your identity
Go to any other free non-login isp site

a) Change your mac id b) Use operator to get a google gmail account (do not use yahoo) c) send your email d) change your mac id e) never use that gmail account again (so you don't have to worry about tors knowing your password, which they will).

What else can reasonably be done to hide your identity when sending an email nastigram?