Hi there Occam!
Having the plan that best fits your usage is definitely important. I will be delighted to provide some suggestions!
Although the new plans are called "Share Everything" it doesn't mean they're shared family plans. It's just a way of saying you're able to use and share your phone in more ways. As you mentioned Unlimited Voice and Messages as well as a pool of data that you can use for your phone or share it with other devices as a modem.
Sorry for any confusion the name may have caused. How many minutes/messages/data are you looking at using?
Let me know!
Follow us on Twitter @vzwsupport